subject:(subtidal wind driven oscillations)

Louisiana State University

1. Feng, Zhixuan. Hydrodynamic response to cold fronts along the Louisiana coast.

Degree: MS, Oceanography and Atmospheric Sciences and Meteorology, 2009, Louisiana State University

URL: etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221

► Cold fronts play important roles in flushing water out of the Louisiana estuaries. This study is aimed at examining the impact of cold front passages… (more)

▼ Cold fronts play important roles in flushing water out of the Louisiana estuaries. This study is aimed at examining the impact of cold front passages on the hydrodynamics in autumn-winter-spring of 2006-2007, and tries to determine the geographic difference, correlation and relative importance of winds, tides, and river discharge on water level variability and flow field. The amplitude spectra of water level reveal that diurnal tides dominate most stations. Areas west of 91°W have relatively high semidiurnal tides. The subtidal fluctuations are mainly wind-driven. Only the station in the Atchafalaya River shows obvious response to the spring flood of the Mississippi/Atchafalaya Rivers. Coastal bays have different water exchange rates depending on their water body area and geomorphology. Five largest flushing events correspond to migrating extratropical cyclones with frontal orientation perpendicular to the coastline, suggesting that wind direction is one of the controlling factors in the flushing rate and total transport. Both alongshore and cross-shore winds may effectively induce bay-shelf exchange. Northwest/north winds appear to be the most effective wind forcing in driving water movement from bay to shelf. Strong cold fronts may flush more than 40% of the bay waters onto the shelf within a period less than 40 hours. The near-surface current on the Louisiana inner shelf is mainly wind-driven, but tidal forcing becomes more important in the sub-surface layers or in the vicinity of the coastline of shallow waters. A prevailing down-coast flow occurs 81% and 70% of the time at CSI-6 and CSI-3, respectively. Strong cold front events may disturb this down-coast flow system by inducing a 1- to 3-day up-coast flow. At CSI-6, the Mississippi river discharge has little influence in non-flood seasons. During the period of spring flood, however, the large amount of freshwater exerts significant barotropic and baroclinic forcings on the current field and reinforces the down-coast flow. The analytical model reveals that the amplitudes of water level variations induced by alongshore and cross-shore wind forcings have the same order of magnitude (i.e., 10-1 m), indicating that they play almost equally important roles in driving the subtidal water level variability inside the bays.

Subjects/Keywords: cold fronts; Mississippi and Atchafalaya River discharge; subtidal wind-driven oscillations; bay-shelf exchange; alongshore and cross-shore wind forcings; down-coast westward flow; Louisiana estuaries and inner continental shelf

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APA (6^th Edition):

Feng, Z. (2009). Hydrodynamic response to cold fronts along the Louisiana coast. (Masters Thesis). Louisiana State University. Retrieved from etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221

Chicago Manual of Style (16^th Edition):

Feng, Zhixuan. “Hydrodynamic response to cold fronts along the Louisiana coast.” 2009. Masters Thesis, Louisiana State University. Accessed January 22, 2021. etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221.

MLA Handbook (7^th Edition):

Feng, Zhixuan. “Hydrodynamic response to cold fronts along the Louisiana coast.” 2009. Web. 22 Jan 2021.

Vancouver:

Feng Z. Hydrodynamic response to cold fronts along the Louisiana coast. [Internet] [Masters thesis]. Louisiana State University; 2009. [cited 2021 Jan 22]. Available from: etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221.

Council of Science Editors:

Feng Z. Hydrodynamic response to cold fronts along the Louisiana coast. [Masters Thesis]. Louisiana State University; 2009. Available from: etd-06102009-153456 ; https://digitalcommons.lsu.edu/gradschool_theses/3221

2. Peng, Yuan. Novel robust control of damping oscillations in power systems with multi-machine wind farms.

Degree: PhD, 2014, University of the West of England, Bristol

URL: https://uwe-repository.worktribe.com/output/818924 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619048

► With the growth in requirement for a high reliability of power supply, stability of the power system and the minimum requirement for control systems becomes… (more)

▼ With the growth in requirement for a high reliability of power supply, stability of the power system and the minimum requirement for control systems becomes more and more significant. The most popular way to solve the problem of stability is to install power system stabilizers (PSSs) on synchronous generators in related power systems. The conventional methods for designing PSS are generally based on the compensation approach for the phase and eigenvalue of the generator model. In recent decades, H-norm based robust PSS has been developed because of the system uncertainty of power grids. In another aspect, wind power has evolved into a significant renewable energy source and increased at an outstanding rate. Stability problems of power system with large wind farms became more and more challenging. Some wind plant modelling methods, for which PS Ss are not taken into consideration, have been developed and widely used in practical applications. The present study is concerned with a comprehensive power system stability analysis based on an improved H-nOl'ffi robust controller design method and a novel modelling approach for doubly fed induction generator (DFIG) wind turbines. Initially, one improved lemma, enhanced with LMI regional pole placement, is developed for linear matrix inequality eLMI) based H2/Hoo robust output feedback controller design. Robust PS Ss are designed based on the approach and they are tested in both single and multimachine systems. A novel DFIG wind turbine model is then built up and tested with the robust PSS in both single and multi-machine systems to see the oscillations damping ability. Finally, based on the robust PSS, a large multi-machine power system with wind parks is selected for a comprehensive stability analysis. Simulated examples and case studies are employed in this study to demonstrate the effect of new PS Ss. The simulation results clearly suggest that the proposed PSS can solve the stability problem of damping oscillations in power systems with large wind parks.

Subjects/Keywords: 621.8; robust control; damping oscillations; power systems; multi-machine; wind farms

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APA (6^th Edition):

Peng, Y. (2014). Novel robust control of damping oscillations in power systems with multi-machine wind farms. (Doctoral Dissertation). University of the West of England, Bristol. Retrieved from https://uwe-repository.worktribe.com/output/818924 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619048

Chicago Manual of Style (16^th Edition):

Peng, Yuan. “Novel robust control of damping oscillations in power systems with multi-machine wind farms.” 2014. Doctoral Dissertation, University of the West of England, Bristol. Accessed January 22, 2021. https://uwe-repository.worktribe.com/output/818924 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619048.

MLA Handbook (7^th Edition):

Peng, Yuan. “Novel robust control of damping oscillations in power systems with multi-machine wind farms.” 2014. Web. 22 Jan 2021.

Vancouver:

Peng Y. Novel robust control of damping oscillations in power systems with multi-machine wind farms. [Internet] [Doctoral dissertation]. University of the West of England, Bristol; 2014. [cited 2021 Jan 22]. Available from: https://uwe-repository.worktribe.com/output/818924 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619048.

Council of Science Editors:

Peng Y. Novel robust control of damping oscillations in power systems with multi-machine wind farms. [Doctoral Dissertation]. University of the West of England, Bristol; 2014. Available from: https://uwe-repository.worktribe.com/output/818924 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.619048

Clemson University

3. Abdlrahem, Abdlmnam Abdlrahem. A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability.

Degree: PhD, Electrical and Computer Engineering (Holcomb Dept. of), 2016, Clemson University

URL: https://tigerprints.clemson.edu/all_dissertations/2313

► The rapid increase in power system grid has resulted in additional challenges to reliable power transfer between interconnected systems of a large power network.… (more)

▼ The rapid increase in power system grid has resulted in additional challenges to reliable power transfer between interconnected systems of a large power network. Large-scale penetration of intermittent renewable energy increases uncertainty and variability in power systems operation. For secure operation of power systems under conditions of variability, it is imperative that power system damping controllers are robust. Electromechanical oscillations in the range of 0.2 Hz to 1 Hz are categorized as inter-area modes. These modes arise due primarily to the weak interconnections characterized by long transmission lines between different operating areas of an interconnected power system. One of the main challenges to secure operation of interconnected power systems is the damping of these inter-area modes. This dissertation introduces two multi-model approaches (loop shaping and H_∞) to designing a fixed-order robust supplementary damping controller to damp inter-area oscillations. The designed fixed-order supplementary damping controller adjusts the voltage reference set point of the Static Var Compensator (SVC). The two main objectives of the controller design are damping low-frequency oscillations and enhancing power system stability. The proposed approaches are based on the shaping of the open-loop transfer function in the Nyquist diagram through minimizing the quadratic error between the actual and the desired open-loop transfer functions in the frequency domain. The H_∞ constraints are linearized with the help of a desired open-loop transfer function. This condition can be achieved by using convex optimization methods. Convexity of the problem formulation ensures global optimality. One of the advantages of the proposed approach is the consideration of multi-model uncertainty. Also, in contrast to the methods that have been studied in literature, the proposed approach deals with full-order model (i.e., model reduction is not required) with lower controller order. In addition, most of the current robust methods are heavily dependent on selecting some weighting filters: such filters are not required in the loop-shaping approach. The proposed approaches are compared with different existing techniques in order to design a robust controller based on H_∞ and H₂ under pole placement. With large-scale power systems, it is difficult to handle large number of states to obtain the system model. Thus, it becomes necessary to use only input/output data measured from the system, and this data can be utilized to construct the mathematical model of the plant. In this research, the mentioned approaches are offered in order to design a robust controller based only on data by using system identification techniques. The mentioned techniques are applied to the two-area four-machines system and 68 bus system. The effectiveness and robustness of the proposed method in damping inter-area oscillations are validated using case studies. Advisors/Committee Members: Elham Makram, Richard Groff, Taufiquar R Khan, Randy Collins, Ramtain Hadidi.

Subjects/Keywords: Fixed order; Inter area oscillations; Robust Controller; Time delay; Wind generartion

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APA (6^th Edition):

Abdlrahem, A. A. (2016). A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability. (Doctoral Dissertation). Clemson University. Retrieved from https://tigerprints.clemson.edu/all_dissertations/2313

Chicago Manual of Style (16^th Edition):

Abdlrahem, Abdlmnam Abdlrahem. “A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability.” 2016. Doctoral Dissertation, Clemson University. Accessed January 22, 2021. https://tigerprints.clemson.edu/all_dissertations/2313.

MLA Handbook (7^th Edition):

Abdlrahem, Abdlmnam Abdlrahem. “A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability.” 2016. Web. 22 Jan 2021.

Vancouver:

Abdlrahem AA. A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability. [Internet] [Doctoral dissertation]. Clemson University; 2016. [cited 2021 Jan 22]. Available from: https://tigerprints.clemson.edu/all_dissertations/2313.

Council of Science Editors:

Abdlrahem AA. A Multi-Model Approach to Design a Robust Fixed-Order Controller to Improve Power System Stability. [Doctoral Dissertation]. Clemson University; 2016. Available from: https://tigerprints.clemson.edu/all_dissertations/2313

Penn State University

4. Yogarathinam, Amirthagunaraj. Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid.

Degree: 2019, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/16801axy43

► This dissertation presents a new modeling and analysis frameworks, and novel control architectures for wide-area power oscillation damping using wind farms in a Networked Controlled… (more)

▼ This dissertation presents a new modeling and analysis frameworks, and novel control architectures for wide-area power oscillation damping using wind farms in a Networked Controlled future smart grid. First, a unified modeling framework for Networked Controlled Power System (NCPS) with wind farms is presented, which is suitable for dynamic simulation during planning studies. A modified dynamic model of Doubly-Fed Induction Generator (DFIG) is proposed to represent the wind farms. The framework also considers a detailed characterization of the communication process with packet loss probability represented by the Gilbert-Elliott model. A modeling adequacy study of the NCPS with different degree of details in the DFIG model and the data packet dropout model is considered for analyzing the performance of wide-area power oscillation damping control. It is shown that such packet drop deteriorates the damping controller performance. To solve this problem, an Observer-driven Reduced Copy (ORC) approach is proposed that uses the knowledge of the nominal system dynamics represented by a reduced-order linear model called ‘reduced copy’ during data dropouts. When a data sample is available, the states of the reduced copy are reset to the newly obtained values. Moreover, two performance measures of the ORC approach are derived. The first performance measure is based upon a bound on the norm of the difference between the power system states in presence of the data dropout and that under ideal communication within an inter-sample interval. This bound is an explicit measure of the performance of ORC impacted by the data dropout. The second measure is based on a bound on the inter-sample error norm between power system states and ‘reduced copy’ states. This measure reveals the impact of the cyber layer, the physical layer, and the interaction between these layers. Next, a novel multi-input multi-output (MIMO)-ORC architecture is proposed in which each of the multiple actuators uses a MIMO ‘reduced copy.’ The concepts of cyber-physical ‘self-coupling’ and ‘cross-coupling’ are introduced in the context of MIMO- and SISO-ORC architectures. Then, a framework for stability analysis of the MIMO-ORC architecture is also presented. The MIMO-ORC architecture needs a reduced-order MIMO linear model of the power grid, which includes DFIG-based wind farms. The difficulty in reducing such models using gramian-based and modal truncation approaches is demonstrated next. To solve this, a relatively new Interpolatory approach of Iterative Rational Krylov Algorithm (IRKA) is presented that shows promising results. Moreover, a Heuristic-based IRKA (H-IRKA) is proposed to improve the accuracy of model order reduction of such models with explicit preservation of the ‘critical modes’ of the system. Finally, after deriving a stable reduced-order MIMO model of the grid with wind farms, which explicitly preserves the critical modes of interest, its effectiveness is tested on the MIMO-ORC architecture. Advisors/Committee Members: Nilanjan Ray Chauduri, Dissertation Advisor/Co-Advisor, Nilanjan Ray Chauduri, Committee Chair/Co-Chair, Minghui Zhu, Committee Member, Mehdi Kiani, Committee Member, James D. Freihaut, Outside Member.

Subjects/Keywords: Networked control systems (NCS); cyberphysical system (CPS); smart grid; phasor measurement unit (PMU); wide-area measurement; electromechanical oscillations; observer-driven reduced copy (ORC); wind farm; data-dropouts; Gilbert-Elliott model; Balanced truncation (BT); Iterative Rational Krylov Algorithm (IRKA); model reduction; multi-input multi-output (MIMO); power grid; Model-based Control

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APA (6^th Edition):

Yogarathinam, A. (2019). Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/16801axy43

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Yogarathinam, Amirthagunaraj. “Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid.” 2019. Thesis, Penn State University. Accessed January 22, 2021. https://submit-etda.libraries.psu.edu/catalog/16801axy43.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Yogarathinam, Amirthagunaraj. “Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid.” 2019. Web. 22 Jan 2021.

Vancouver:

Yogarathinam A. Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid. [Internet] [Thesis]. Penn State University; 2019. [cited 2021 Jan 22]. Available from: https://submit-etda.libraries.psu.edu/catalog/16801axy43.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Yogarathinam A. Wide-Area Power Oscillation Damping using Wind Farms in a Networked Controlled Future Smart Grid. [Thesis]. Penn State University; 2019. Available from: https://submit-etda.libraries.psu.edu/catalog/16801axy43

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Florida

5. Juarez Araiza, Braulio. Estuarine Flows Driven by the Interaction of Winds and Density Gradients.

Degree: PhD, Coastal and Oceanographic Engineering - Civil and Coastal Engineering, 2019, University of Florida

URL: https://ufdc.ufl.edu/UFE0055931

► Within estuaries, there is a mix of salty and freshwater regulated by hydrodynamic drivers such as tide, wind, density gradients, and waves. These forcings interact… (more)

Subjects/Keywords: density-driven-flow – estuaries – estuarine-flows – estuarine-salt-plug – wind-driven-flow

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APA (6^th Edition):

Juarez Araiza, B. (2019). Estuarine Flows Driven by the Interaction of Winds and Density Gradients. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0055931

Chicago Manual of Style (16^th Edition):

Juarez Araiza, Braulio. “Estuarine Flows Driven by the Interaction of Winds and Density Gradients.” 2019. Doctoral Dissertation, University of Florida. Accessed January 22, 2021. https://ufdc.ufl.edu/UFE0055931.

MLA Handbook (7^th Edition):

Juarez Araiza, Braulio. “Estuarine Flows Driven by the Interaction of Winds and Density Gradients.” 2019. Web. 22 Jan 2021.

Vancouver:

Juarez Araiza B. Estuarine Flows Driven by the Interaction of Winds and Density Gradients. [Internet] [Doctoral dissertation]. University of Florida; 2019. [cited 2021 Jan 22]. Available from: https://ufdc.ufl.edu/UFE0055931.

Council of Science Editors:

Juarez Araiza B. Estuarine Flows Driven by the Interaction of Winds and Density Gradients. [Doctoral Dissertation]. University of Florida; 2019. Available from: https://ufdc.ufl.edu/UFE0055931

University of Edinburgh

6. Nisbet, David Maltman. Role of active galactic nuclei in galaxy evolution.

Degree: PhD, 2018, University of Edinburgh

URL: http://hdl.handle.net/1842/31366

► It is now believed that most, if not all, galaxies contain a supermassive black hole (SMBH) and that these play a crucial role in their… (more)

▼ It is now believed that most, if not all, galaxies contain a supermassive black hole (SMBH) and that these play a crucial role in their host galaxies' evolution. Whilst accreting material, a SMBH (known as an active galactic nucleus, AGN, during this growth phase) releases energy which may have the effect of quenching star formation and constraining the growth of the galaxy. It is believed that AGNs can be divided into two broad fundamental categories, each with its own feedback mechanism. The radiative-mode of feedback occurs in gas-rich galaxies when substantial star formation is occurring and their young AGNs are growing rapidly through efficient accretion of cold gas. A fraction of the energy released by an AGN is transferred into the surrounding gas, creating a thermal "energy-driven" wind or pressure "momentum-driven" wind. Gas and dust may be expelled from the galaxy, so halting star formation but also cutting off the fuel supply to the AGN itself. The jet-mode occurs thereafter. The SMBH has now attained a large mass, but is accreting at a comparatively low level as gas slowly cools and falls back into the galaxy. The accretion process generates two-sided jets that generate shock fronts, so heating the gas surrounding the galaxy and partially offsetting the radiative cooling. This restricts the inflow of gas into the galaxy, so slowing the growth of the galaxy and SMBH. There are several convincing theoretical arguments to support the existence of these feedback mechanisms, although observational evidence has been hard to obtain. A new radio telescope - the Low Frequency Array (LOFAR) - recently started operations. LOFAR is especially suitable for investigating AGN feedback. It has been designed to allow exploration of low radio frequencies, between 10 and 240 MHz, which are particularly relevant for research into AGN activity. Also, with its large field-of-view and multi-beam capability, LOFAR is ideal for conducting extensive radio surveys. A project to image deeply the ELAIS-N1 field was started in May 2013. This thesis uses a number of surveys at different wavelengths, but particularly the low-frequency radio observations of the ELAIS-N1 field, to improve our knowledge of jet-mode AGN feedback and hence of the interplay between the complicated processes involved in galaxy formation and evolution. The more important pieces of research within the thesis are as follows: - A sample of 576 AGNs in the nearby universe was assembled and used to find a relationship between radio luminosity, X-ray luminosity and black hole mass. Moreover, the relationship is valid over at least 15 orders of magnitude in X-ray luminosity, strongly suggesting that the process responsible for the launching of radio jets is scale-invariant. - The established "Likelihood Ratio" technique was refined to incorporate colour information in order to optimally match the radio sources in the ELAIS-N1 field with their host galaxies. - The resulting catalogue was used to investigate ways in which radio sources can be matched automatically with…

Subjects/Keywords: 523.1; supermassive black holes; SMBH; active galactic nucleus; energy-driven wind; momentum-driven wind; LOFAR; AGN feedback; redshift 0.75; redshift

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APA (6^th Edition):

Nisbet, D. M. (2018). Role of active galactic nuclei in galaxy evolution. (Doctoral Dissertation). University of Edinburgh. Retrieved from http://hdl.handle.net/1842/31366

Chicago Manual of Style (16^th Edition):

Nisbet, David Maltman. “Role of active galactic nuclei in galaxy evolution.” 2018. Doctoral Dissertation, University of Edinburgh. Accessed January 22, 2021. http://hdl.handle.net/1842/31366.

MLA Handbook (7^th Edition):

Nisbet, David Maltman. “Role of active galactic nuclei in galaxy evolution.” 2018. Web. 22 Jan 2021.

Vancouver:

Nisbet DM. Role of active galactic nuclei in galaxy evolution. [Internet] [Doctoral dissertation]. University of Edinburgh; 2018. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/1842/31366.

Council of Science Editors:

Nisbet DM. Role of active galactic nuclei in galaxy evolution. [Doctoral Dissertation]. University of Edinburgh; 2018. Available from: http://hdl.handle.net/1842/31366

University of Utah

7. Farley-Chrust, Morgan. Observations and modeling of thermally driven wind jets at the exit of a Utah canyon.

Degree: MS, Atmospheric Sciences, 2011, University of Utah

URL: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/23/rec/1731

► This thesis investigates summertime thermally driven wind circulations in a Utah canyon. The study is focused around Weber Canyon, Utah, which is a main tributary… (more)

▼ This thesis investigates summertime thermally driven wind circulations in a Utah canyon. The study is focused around Weber Canyon, Utah, which is a main tributary canyon that feeds into the Great Salt Lake basin. A measurement campaign was conducted during July-September 2010 to observe and characterize the wind flow patterns in Weber Canyon and specifically the nature of the summertime fair-weather wind jet that has been observed to form at the exit region of Weber and other Utah canyons. This thesis research uniquely combines many meteorological data sources including existing automatic weather stations, measurement equipment borrowed from several generous parties, and equipment owned by the University of Utah’s Atmospheric Sciences department. Winds within the canyon and at the exit exhibited a strong seasonal and diurnal variation that is linked to the yearly course of solar insolation. Strong nocturnal low-level wind jets formed on 75 of 90 nights (83%) at the Weber Canyon exit during the measurement campaign. Winds inside the canyon consisted of a weak but deep down valley flow layer that occupied most of the depth of the canyon. The flow was observed to descend, thin and compress at the exit where winds were typically twice as strong as inside the canyon and much more shallow. Flow within the canyon and at the exit was influenced by the larger scale synoptic conditions. Clear skies and weak regional pressure gradients along with light winds aloft were conducive to the development of strong canyon exit flows. Four canyon flow regimes were observed depending upon the strength and orientation of the synoptic flow. Observations of flow properties within and at the exit of the canyon were compared to Large Eddy numerical simulations using the Advanced Research Weather Research and Forecast (ARW) numerical weather prediction (NWP) model developed by NCAR. Good agreement between the observations and model simulations has been achieved. The wind power potential at the exit region is shown to be excellent.

Subjects/Keywords: Canyon; Energy; Exit; Jets; Utah; Wind; Thermally driven winds; Weber Canyon

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APA (6^th Edition):

Farley-Chrust, M. (2011). Observations and modeling of thermally driven wind jets at the exit of a Utah canyon. (Masters Thesis). University of Utah. Retrieved from http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/23/rec/1731

Chicago Manual of Style (16^th Edition):

Farley-Chrust, Morgan. “Observations and modeling of thermally driven wind jets at the exit of a Utah canyon.” 2011. Masters Thesis, University of Utah. Accessed January 22, 2021. http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/23/rec/1731.

MLA Handbook (7^th Edition):

Farley-Chrust, Morgan. “Observations and modeling of thermally driven wind jets at the exit of a Utah canyon.” 2011. Web. 22 Jan 2021.

Vancouver:

Farley-Chrust M. Observations and modeling of thermally driven wind jets at the exit of a Utah canyon. [Internet] [Masters thesis]. University of Utah; 2011. [cited 2021 Jan 22]. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/23/rec/1731.

Council of Science Editors:

Farley-Chrust M. Observations and modeling of thermally driven wind jets at the exit of a Utah canyon. [Masters Thesis]. University of Utah; 2011. Available from: http://content.lib.utah.edu/cdm/singleitem/collection/etd3/id/23/rec/1731

University of Colorado

8. Butterworth, Brian J. A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado.

Degree: MA, Geography, 2011, University of Colorado

URL: https://scholar.colorado.edu/geog_gradetds/18

► Thermally-driven upslope winds are one of the many different wind patterns unique to mountainous terrain. While the general mechanics of these winds have been… (more)

Subjects/Keywords: alpine; anabatic; thermally-driven; treeline; upslope; wind; Atmospheric Sciences; Geography; Meteorology

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APA (6^th Edition):

Butterworth, B. J. (2011). A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado. (Masters Thesis). University of Colorado. Retrieved from https://scholar.colorado.edu/geog_gradetds/18

Chicago Manual of Style (16^th Edition):

Butterworth, Brian J. “A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado.” 2011. Masters Thesis, University of Colorado. Accessed January 22, 2021. https://scholar.colorado.edu/geog_gradetds/18.

MLA Handbook (7^th Edition):

Butterworth, Brian J. “A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado.” 2011. Web. 22 Jan 2021.

Vancouver:

Butterworth BJ. A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado. [Internet] [Masters thesis]. University of Colorado; 2011. [cited 2021 Jan 22]. Available from: https://scholar.colorado.edu/geog_gradetds/18.

Council of Science Editors:

Butterworth BJ. A Climatological Study of the Relationship between Alpine Treeline and Thermally-driven Upslope Winds on Niwot Ridge, Colorado. [Masters Thesis]. University of Colorado; 2011. Available from: https://scholar.colorado.edu/geog_gradetds/18

Rice University

9. Salazar, Josue E. Predicting wind induced damage to residential structures: a machine learning approach.

Degree: MS, Engineering, 2015, Rice University

URL: http://hdl.handle.net/1911/88138

► Hurricane winds can cause significant physical damage to residential properties. Pre-storm prediction of wind damage risk allows residents and city emergency officials to plan actions… (more)

Subjects/Keywords: hurricane; ike; wind; damage; risk; prediction; data-driven; supervised; machine learning

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APA (6^th Edition):

Salazar, J. E. (2015). Predicting wind induced damage to residential structures: a machine learning approach. (Masters Thesis). Rice University. Retrieved from http://hdl.handle.net/1911/88138

Chicago Manual of Style (16^th Edition):

Salazar, Josue E. “Predicting wind induced damage to residential structures: a machine learning approach.” 2015. Masters Thesis, Rice University. Accessed January 22, 2021. http://hdl.handle.net/1911/88138.

MLA Handbook (7^th Edition):

Salazar, Josue E. “Predicting wind induced damage to residential structures: a machine learning approach.” 2015. Web. 22 Jan 2021.

Vancouver:

Salazar JE. Predicting wind induced damage to residential structures: a machine learning approach. [Internet] [Masters thesis]. Rice University; 2015. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/1911/88138.

Council of Science Editors:

Salazar JE. Predicting wind induced damage to residential structures: a machine learning approach. [Masters Thesis]. Rice University; 2015. Available from: http://hdl.handle.net/1911/88138

Delft University of Technology

10. Bakker, F. (author). Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming.

Degree: 1995, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:ee30387f-9969-4dd4-af5b-442df56b157e

►

Om te onderzoeken welke invloed chaotische advectie kan hebben op een doorgaande stroming is een tweedimensionaal horizontaal computermodel gemaakt met de naam Xadvec. Het model… (more)

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Om te onderzoeken welke invloed chaotische advectie kan hebben op een doorgaande stroming is een tweedimensionaal horizontaal computermodel gemaakt met de naam Xadvec. Het model beschrijft een ondiep rond meer waarin door de wind en door een constant doorstromend debiet een stroming wordt opgewekt. De windrichting varieert periodiek met de tijd. Het computermodel berekent voor opeenvolgende tijdstippen de posities van deeltjes die in het meer zijn losgelaten en bepaalt hun verblijftijd. Er wordt gebruik gemaakt van het numerieke schema van Runge-Kutta. Twee verschillende tijdstappen worden gebruikt; een kleinere tijdstap voor een gebied dichtbij het instroom- of het uitstroompunt en een grotere tijdstap voor de rest van het meer. Binnenkomst van deeltjes via het instroompunt wordt gesimuleerd door ze in een (zeer kleine) halve kring rond het instroompunt te plaatsen. Met dit model kan een grote verscheidenheid aan stromingen worden beschreven. Uit oogpunt van chaos zijn alleen stromingen waarin neren optreden interessant. Na een inventarisatie van de verschillende stroomtypen, wordt één stromingsgeval uitgekozen voor verder onderzoek. Bij deze stroming wringt de doorgaande stroming zich tussen twee grote neren door. Aan de oevers bevinden zich twee stabiele en twee instabiele stuwpunten. Bij periodieke variatie van de windrichting in deze stroming blijken stabiele en instabiele variëteiten elkaar te snijden, hetgeen chaotische advectie impliceert. Poincaré-secties vertonen de karakteristieke structuur die reeds uit eerdere studies bekend was: rondom elliptische periodieke punten met periode één bevinden zich eilanden, waarin de beweging ordelijk is, terwijl daarbuiten, nabij de separatrices, chaotisch deeltjesbanen voorkomen. Door het ontbreken van uitwisseling tussen de eilanden en het chaotische gebied kan patchiness optreden. Deeltjes die ter plaatse van de eilanden worden geloosd blijven daar gevangen. Bij een instantane lozing in het instroompunt stromen de deeltjes uit in een aantal opeenvolgende golven met een herhalingstijd die overeenkomt met de omwentelingsperiode van de neren. Als de windrichtingsperiode groter wordt dan tweemaal de verblijftijd (bij de dan heersende stroomparameters), treden er weer ordelijke deeltjesbanen op, ook al is het stroomregime volgens alle andere criteria chaotisch, omdat dan alle deeltjes zullen zijn uitgestroomd voordat de wind eenmaal van richting is veranderd. Ook door louter dispersie, zonder chaos, kunnen er afzonderlijke golven ontstaan in de verblijftijdsdichtheidverdeling. De secundaire golven blijven dan echter maar klein en lopen al snel in elkaar over. Bij combinatie van chaos en dispersie ziet men dat bij kortere perioden de dispersie overheerst als verspreidingsmechanisme, maar bij langere perioden de chaotische advectie.

Hydraulic Engineering

Civil Engineering and Geosciences

Advisors/Committee Members: Battjes, J.A. (mentor), Kranenburg, C. (mentor), Van Mazijk, A. (mentor).

Subjects/Keywords: wind driven current; advection

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Bakker, F. (. (1995). Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:ee30387f-9969-4dd4-af5b-442df56b157e

Chicago Manual of Style (16^th Edition):

Bakker, F (author). “Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming.” 1995. Masters Thesis, Delft University of Technology. Accessed January 22, 2021. http://resolver.tudelft.nl/uuid:ee30387f-9969-4dd4-af5b-442df56b157e.

MLA Handbook (7^th Edition):

Bakker, F (author). “Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming.” 1995. Web. 22 Jan 2021.

Vancouver:

Bakker F(. Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming. [Internet] [Masters thesis]. Delft University of Technology; 1995. [cited 2021 Jan 22]. Available from: http://resolver.tudelft.nl/uuid:ee30387f-9969-4dd4-af5b-442df56b157e.

Council of Science Editors:

Bakker F(. Chaotische advectie in een ondiep modelmeer onder invloed van wind en doorstroming. [Masters Thesis]. Delft University of Technology; 1995. Available from: http://resolver.tudelft.nl/uuid:ee30387f-9969-4dd4-af5b-442df56b157e

University of Minnesota

11. Carufel, Clay. Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes.

Degree: MS, Physics, 2020, University of Minnesota

URL: http://hdl.handle.net/11299/213064

► Strong winds blowing down the axis of southwestern Lake Superior in the springtime can produce a wind-driven sediment plume. The plume has coastal currents in… (more)

Subjects/Keywords: Circulation; Large lakes; Modeling; Sediment plume; Wind-driven

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Carufel, C. (2020). Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes. (Masters Thesis). University of Minnesota. Retrieved from http://hdl.handle.net/11299/213064

Chicago Manual of Style (16^th Edition):

Carufel, Clay. “Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes.” 2020. Masters Thesis, University of Minnesota. Accessed January 22, 2021. http://hdl.handle.net/11299/213064.

MLA Handbook (7^th Edition):

Carufel, Clay. “Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes.” 2020. Web. 22 Jan 2021.

Vancouver:

Carufel C. Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes. [Internet] [Masters thesis]. University of Minnesota; 2020. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/11299/213064.

Council of Science Editors:

Carufel C. Numerical Modeling of the Circulation of Wind-Driven Sediment Plumes In Large Lakes. [Masters Thesis]. University of Minnesota; 2020. Available from: http://hdl.handle.net/11299/213064

University of Maryland

12. Jia, Peng. Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary.

Degree: Marine-Estuarine-Environmental Sciences, 2011, University of Maryland

URL: http://hdl.handle.net/1903/11893

► The circulation and salt balance in the Albemarle-Pamlico Sound (APS) are investigated using a 3D hydrodynamic model. Although stratification is weak, the mean flow features… (more)

Subjects/Keywords: Physical oceanography; Lagoonal Estuary; Salt Balance; Salt Flux; Wind-driven Circulation

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APA (6^th Edition):

Jia, P. (2011). Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary. (Thesis). University of Maryland. Retrieved from http://hdl.handle.net/1903/11893

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jia, Peng. “Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary.” 2011. Thesis, University of Maryland. Accessed January 22, 2021. http://hdl.handle.net/1903/11893.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jia, Peng. “Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary.” 2011. Web. 22 Jan 2021.

Vancouver:

Jia P. Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary. [Internet] [Thesis]. University of Maryland; 2011. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/1903/11893.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jia P. Wind Driven Circulation Dynamics and Salt Balance in a Wide Shallow Lagoonal Estuary. [Thesis]. University of Maryland; 2011. Available from: http://hdl.handle.net/1903/11893

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Sydney

13. Tasnim, Samira. Generalized Theory of the Solar Wind .

Degree: 2017, University of Sydney

URL: http://hdl.handle.net/2123/16755

► Development of a self-consistent theoretical model is of fundamental importance to the study of the solar wind. Such a model is necessary to understand the… (more)

▼ Development of a self-consistent theoretical model is of fundamental importance to the study of the solar wind. Such a model is necessary to understand the origin of the solar wind as well as observational and theoretical aspects. For instance, a complete description of the acceleration of solar wind particles, intrinsic velocity and magnetic field components, role of magnetic field in the solar wind's angular momentum loss, and so on has not yet been achieved. This thesis presents two data-driven solar wind models to provide more detailed pictures of the solar wind in the equatorial plane, to extract the solar wind plasma quantities from the direct observations at 1 AU, and to describe the underlying physics. It also provides a comprehensive comparison between analytic predictions, observations, and advanced MHD (magnetohydrodynamics) simulation outputs. Chapter 1 provides a short literature review and a brief introduction for the thesis. Chapter 2 develops an analytic, self-consistent, theoretical model for the solar wind that includes conservation of angular momentum, frozen-in magnetic fields, and radial (r) and azimuthal (φ) components of velocity and magnetic field from the source surface/inner boundary to 1 AU. The solar wind model enforces corotation at the source surface (rs) assumes a constant radial speed at all heliolongitude, and applies near the equatorial plane. This model generalises previous models and reproduces the previous models in the appropriate limits. The model calculates the Alfvénic critical radius (ra) using the radial Alfvénic Mach number at 1 AU, and the predicted values agree with some recent observations. The predicted azimuthal velocity, which is only due to corotation is in the sense of corotation, but varies with, heliolongitudes (φ). Observations of the azimuthal velocity at 1 AU are usually much larger than predictions and not always in the corotation direction. These azimuthal velocities can not be explained by conservation of angular momentum alone. The standard interpretation involving stream-stream interactions and dynamical behaviour seems reasonable. Chapter 3 develops an accelerating solar wind model that includes the following: conservation of angular momentum, deviations from corotation, and non-radial velocity and magnetic field components from an inner boundary (or source surface) to beyond 1 AU. The model includes an accelerating solar wind profile using a solution of the time-steady isothermal equation of motion and predicts locations ra for the Alfvénic critical point which agree with recent observations. This model allows the flow velocity v to not always be parallel to magnetic field B in the corotating frame with the Sun, which results an electric field (E′) in the corotation frame. The resulting (E′ × B) drift may lead to enhanced scattering/heating of sufficiently energetic particles. The model demonstrates the existence of non-zero deviations δvφ from corotation at the source surface. These deviations of corotation are analogous to the transverse velocities…

Subjects/Keywords: solar wind; magnetic field; magnetohydrodynamics (MHD); source surface; data-driven model

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Tasnim, S. (2017). Generalized Theory of the Solar Wind . (Thesis). University of Sydney. Retrieved from http://hdl.handle.net/2123/16755

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Tasnim, Samira. “Generalized Theory of the Solar Wind .” 2017. Thesis, University of Sydney. Accessed January 22, 2021. http://hdl.handle.net/2123/16755.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Tasnim, Samira. “Generalized Theory of the Solar Wind .” 2017. Web. 22 Jan 2021.

Vancouver:

Tasnim S. Generalized Theory of the Solar Wind . [Internet] [Thesis]. University of Sydney; 2017. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/2123/16755.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Tasnim S. Generalized Theory of the Solar Wind . [Thesis]. University of Sydney; 2017. Available from: http://hdl.handle.net/2123/16755

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tennessee – Knoxville

14. Silva Saravia, Horacio. Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance.

Degree: 2019, University of Tennessee – Knoxville

URL: https://trace.tennessee.edu/utk_graddiss/5673

► This dissertation investigates the strengthening of power system dynamics with regard to electromechanical oscillations by using electronically-interfaced resources (EIR). The dissertation addresses (1) the modeling… (more)

Subjects/Keywords: Power Systems; Inter-area oscillations; Solar PV; Wind power; Energy Storage; Stability and control

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APA (6^th Edition):

Silva Saravia, H. (2019). Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance. (Doctoral Dissertation). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_graddiss/5673

Chicago Manual of Style (16^th Edition):

Silva Saravia, Horacio. “Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance.” 2019. Doctoral Dissertation, University of Tennessee – Knoxville. Accessed January 22, 2021. https://trace.tennessee.edu/utk_graddiss/5673.

MLA Handbook (7^th Edition):

Silva Saravia, Horacio. “Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance.” 2019. Web. 22 Jan 2021.

Vancouver:

Silva Saravia H. Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance. [Internet] [Doctoral dissertation]. University of Tennessee – Knoxville; 2019. [cited 2021 Jan 22]. Available from: https://trace.tennessee.edu/utk_graddiss/5673.

Council of Science Editors:

Silva Saravia H. Energy-Driven Analysis of Electronically-Interfaced Resources for Improving Power System Dynamic Performance. [Doctoral Dissertation]. University of Tennessee – Knoxville; 2019. Available from: https://trace.tennessee.edu/utk_graddiss/5673

15. Thapa, Ravi Chandra. Damping Interarea Oscillations in Power Systems with DFIG.

Degree: 2011, North Dakota State University

URL: http://hdl.handle.net/10365/29173

► With rapid depletion of fossil fuels and increasing environmental concerns, the trend to capture renewable energy, especially through wind energy resources, is increasing. The doubly… (more)

Subjects/Keywords: Electric power systems – Control.; Electric power system stability.; Electric motors, Induction.; Oscillations.; Wind power plants.

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APA (6^th Edition):

Thapa, R. C. (2011). Damping Interarea Oscillations in Power Systems with DFIG. (Thesis). North Dakota State University. Retrieved from http://hdl.handle.net/10365/29173

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Thapa, Ravi Chandra. “Damping Interarea Oscillations in Power Systems with DFIG.” 2011. Thesis, North Dakota State University. Accessed January 22, 2021. http://hdl.handle.net/10365/29173.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Thapa, Ravi Chandra. “Damping Interarea Oscillations in Power Systems with DFIG.” 2011. Web. 22 Jan 2021.

Vancouver:

Thapa RC. Damping Interarea Oscillations in Power Systems with DFIG. [Internet] [Thesis]. North Dakota State University; 2011. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/10365/29173.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Thapa RC. Damping Interarea Oscillations in Power Systems with DFIG. [Thesis]. North Dakota State University; 2011. Available from: http://hdl.handle.net/10365/29173

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

16. Lovas, David. Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/138068

► This bachelor thesis deals with mathematical models of linear mechanical oscillators, which represent one of basic applications of ordinary differential equations. There are explained harmonic… (more)

Subjects/Keywords: Mechanický oscilátor; lineární oscilátor; harmonické kmity; tlumené kmity; buzené kmity; skládaní kmitů; spřažení oscilátorů; synchronizace; Mechanical oscillator; linear oscillator; harmonic oscillations; damped oscillations; driven oscillations; superposition of oscillations; coupling of oscillators; synchronization

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lovas, D. (2019). Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/138068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lovas, David. “Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators.” 2019. Thesis, Brno University of Technology. Accessed January 22, 2021. http://hdl.handle.net/11012/138068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lovas, David. “Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators.” 2019. Web. 22 Jan 2021.

Vancouver:

Lovas D. Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/11012/138068.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lovas D. Matematické modely lineárních oscilátorů: Mathematical models of linear and nonlinear oscillators. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/138068

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

17. You, Yingzhe. METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT.

Degree: 2017, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/14498yxy5241

► Hurricanes can cause extensive damage to the building and the envelope systems of commercial buildings as documented over the past several decades in the United… (more)

Subjects/Keywords: Fragility; Hurricane damage; Performance-Based Engineering; Glazing system; Loss assessment; Wind-borne debris; Wind-driven rain

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APA (6^th Edition):

You, Y. (2017). METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT. (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/14498yxy5241

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

You, Yingzhe. “METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT.” 2017. Thesis, Penn State University. Accessed January 22, 2021. https://submit-etda.libraries.psu.edu/catalog/14498yxy5241.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

You, Yingzhe. “METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT.” 2017. Web. 22 Jan 2021.

Vancouver:

You Y. METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT. [Internet] [Thesis]. Penn State University; 2017. [cited 2021 Jan 22]. Available from: https://submit-etda.libraries.psu.edu/catalog/14498yxy5241.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

You Y. METHODOLOGY FOR HURRICANE DAMAGE ESTIMATION TO GLAZING SYSTEM TOWARDS PROBABILISTIC LOSS ASSESSMENT. [Thesis]. Penn State University; 2017. Available from: https://submit-etda.libraries.psu.edu/catalog/14498yxy5241

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Sul

18. Zucchetti, Lais. Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida.

Degree: 2016, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/156782

►

A umidade é um dos principais agentes causadores de manifestações patológicas no ambiente construído, e, a chuva dirigida, é uma das principais fontes de umidade… (more)

▼

A umidade é um dos principais agentes causadores de manifestações patológicas no ambiente construído, e, a chuva dirigida, é uma das principais fontes de umidade que afetam a durabilidade das fachadas das edificações. Desta forma, métodos vêm sendo desenvolvidos como forma de avaliação, entre eles se encontram os experimentais que buscam avaliar este fenômeno a partir da realização de ensaios. A pesquisa é motivada pela constatação da quase inexistência de estudos experimentais de quantificação de chuva dirigida, bem como pela identificação da problemática relacionada ao manchamento e infiltração de água na área próxima às janelas. Sendo assim, o objetivo principal desta pesquisa é identificar, com base em testes de chuva dirigida, a influência das características de projeção, com variações de 50 mm e 120 mm, de inclinação, com valores de 6% e 20%, e engaste lateral do peitoril, sem engaste e com engates de 100 mm, no molhamento da área de fachada localizada próxima às janelas. Este trabalho foi desenvolvido a partir da avaliação de nove modelos com dimensões 1,20m x 2,40m, sendo um modelo de referência sem peitoril, e outros oito englobando as diferentes configurações de projeção, inclinação e engastes laterais dos peitoris, em granito. As técnicas empregadas nas avaliações dos modelos foram a coleta de água da chuva nos paramentos dos modelos, registros de imagens termográficas por infravermelho, chuva colorida para identificação dos fluxos e registros fotográficos digitais A chuva simulada apresentava vazão total de 6 l/m, com diâmetros de gota que variavam de 0,86 mm – 1,45 mm com interceptação de velocidade de vento de 3,2 m/s, e, os testes foram desenvolvidos em quatro ciclos de 15 minutos de duração cada. Os resultados demonstraram que a utilização de prolongamentos laterais nos peitoris promoveram melhor desempenho dos modelos com relação ao descolamento da água da chuva das paredes, quando em comparação àqueles que não possuem esta configuração. Considerando a inclinação dos peitoris identificou-se que o valor de 6% permite, mesmo com a existência de um lacrimal na face inferior do peitoril, a percolação da água da chuva pela porção inferior deste elemento, com um gotejamento vertical. Nas configurações com 20% de inclinação do peitoril não se verifica este comportamento, contudo, o gotejamento ocorre no sentido da parede do modelo, direcionando parte do fluxo da chuva para a área localizada abaixo do peitoril, condicionando valores mais elevados de coleta de chuva. A projeção de 50 mm protege de forma menos eficiente as paredes dos modelos do molhamento pela chuva dirigida, gerando áreas protegidas menores e maiores valores de água coletada quando comparadas à projeção de 120 mm.

Moisture is one of the leading causes of pathological manifestations in buildings. Wind driven rain, is one of the main sources that affect the buildings facades durability. Thus, with the mean to evaluate this phenomenon, some experimental methods has been evaluated. The inexistence of experimental studies for wind driven rain…

Advisors/Committee Members: Masuero, Angela Borges.

Subjects/Keywords: Água da chuva; Wind driven rain; Peitoril; Building facade wetness; Fachadas; Window sill

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APA (6^th Edition):

Zucchetti, L. (2016). Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/156782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Zucchetti, Lais. “Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida.” 2016. Thesis, Universidade do Rio Grande do Sul. Accessed January 22, 2021. http://hdl.handle.net/10183/156782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Zucchetti, Lais. “Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida.” 2016. Web. 22 Jan 2021.

Vancouver:

Zucchetti L. Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2016. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/10183/156782.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Zucchetti L. Influência das características do peitoril no molhamento dos parâmetros próximos às janelas frente à chuva dirigida. [Thesis]. Universidade do Rio Grande do Sul; 2016. Available from: http://hdl.handle.net/10183/156782

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Universidade do Rio Grande do Sul

19. Poyastro, Patricia Carone. Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida.

Degree: 2011, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/56570

►

Os problemas de manchamento e infiltração de água nas fachadas das edificações, por ação de chuva dirigida, são cada vez mais correntes nos grandes centros… (more)

▼

Os problemas de manchamento e infiltração de água nas fachadas das edificações, por ação de chuva dirigida, são cada vez mais correntes nos grandes centros urbanos brasileiros. Estas manifestações patológicas ocasionam não só problemas do ponto de vista estético, mas também técnico. Um dos fatores que mais contribuíram para o aparecimento destes problemas foram as características construtivas adotadas pela arquitetura moderna, que deixou de utilizar muitos detalhes arquitetônicos que preveniam o escorrimento da chuva e dos poluentes atmosféricos pelas fachadas. Além disso, os novos materiais e sistemas construtivos introduzidos nas últimas décadas trouxeram também mais problemas de umidade e infiltração de água. O aprofundamento neste tema é importante e necessário, uma vez que faltam estudos práticos que testem e especifiquem melhores volumetrias e entornos visando minimizar estes fenômenos. Sendo assim, este trabalho teve como objetivo avaliar a influência da volumetria e das condições de entorno da edificação no manchamento de superfícies e infiltração de água em fachadas por ação de chuva dirigida. Foram ensaiados em túnel de vento, três modelos reduzidos de edificações com diferentes volumetrias e com três alturas diferentes de edificações de entorno. Os modelos reduzidos foram ensaiados primeiramente somente com vento, onde se obteve os coeficientes de pressão do vento em diferentes pontos das fachadas. Após, foram ensaiados com a inserção de água no túnel de vento, simulando a ação da chuva dirigida nas edificações. Nesta segunda etapa, a análise foi visual, através de registros em papéis sensíveis à água colados nos modelos. Além disso, alguns ensaios complementares foram realizados com fins exploratórios. Com base nos resultados encontrados pode-se afirmar que a ação do vento e da chuva atuando simultaneamente é muito diferente da ação dos mesmos atuando isoladamente nas edificações. Com a realização dos ensaios se verificou que a forma da edificação praticamente não influenciou no padrão de molhamento quando a chuva dirigida incide a 90° na fachada e que os entornos influenciaram negativamente no molhamento das fachadas, com exceção do entorno com dobro da altura. Este trabalho pôde contribuir para um melhor entendimento da ação da chuva dirigida visando a redução de manifestações patológicas das edificações.

The problems of staining and water infiltration through building facades, by the action of winddriven rain, are becoming more common in the Brazilian cities. These pathologies cause esthetic and technical problems. The modern architecture contributed to the emergence of these problems because it stopped using many architectural details that used to prevent the rain and atmospheric pollutants runoff by the facades. Moreover, new materials and construction systems introduced in recent decades have also brought more problems with moisture and water infiltration. Studies of this subject are important and necessary, since they lack practical studies to test and specify the best volumetry and building…

Advisors/Committee Members: Masuero, Angela Borges, Loredo-Souza, Acir Mércio.

Subjects/Keywords: Facade; Manifestações patológicas; Fachadas; Wind-driven rain; Construção civil; Staining; Infiltration; Água da chuva; Edifícios

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Poyastro, P. C. (2011). Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/56570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Poyastro, Patricia Carone. “Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida.” 2011. Thesis, Universidade do Rio Grande do Sul. Accessed January 22, 2021. http://hdl.handle.net/10183/56570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Poyastro, Patricia Carone. “Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida.” 2011. Web. 22 Jan 2021.

Vancouver:

Poyastro PC. Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2011. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/10183/56570.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Poyastro PC. Influência da volumetria e das condições de entorno da edificação no manchamento e infiltração de água em fachadas por ação de chuva dirigida. [Thesis]. Universidade do Rio Grande do Sul; 2011. Available from: http://hdl.handle.net/10183/56570

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Penn State University

20. Bayraktar, Zikri. NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS .

Degree: 2011, Penn State University

URL: https://submit-etda.libraries.psu.edu/catalog/11799

► Heuristic numerical optimization algorithms have been gaining interest over the years as the computational power of the digital computers increases at an unprecedented level every… (more)

▼ Heuristic numerical optimization algorithms have been gaining interest over the years as the computational power of the digital computers increases at an unprecedented level every year. While mature techniques such as the Genetic Algorithm increase their application areas, researchers also try to come up with new algorithms by simply observing the highly tuned processes provided by the nature. In this dissertation, the well-known Genetic Algorithm (GA) will be utilized to tackle various novel electromagnetic optimization problems, along with parallel implementation of the Clonal Selection Algorithm (CLONALG) and newly introduced the Wind Driven Optimization (WDO) technique. The utility of the CLONALG parallelization and the efficiency of the WDO will be illustrated by applying them to multi-dimensional and multi-modal electromagnetics problems such as antenna design and metamaterial surface synthesis. One of the metamaterial application areas is the design synthesis of 90 degrees rotationally symmetric ultra-small unit cell artificial magnetic conducting (AMC) surfaces. AMCs are composite metallo-dielectric structures designed to behave as perfect magnetic conductors (PMC) over a certain frequency range, those exhibit a reflection coefficient magnitude of unity with an phase angle of zero degrees at the center of the band. The proposed designs consist of ultra small sized frequency selective surface (FSS) unit cells that are tightly packed and highly intertwined, yet achieve remarkable AMC band performance and field of view when compared to current state-of-the-art AMCs. In addition, planar double-sided AMC (DSAMC) structures are introduced and optimized as AMC ground planes for low profile antennas in composite platforms and separator slabs for vertical antenna applications. The proposed designs do not possess complete metallic ground planes, which makes them ideal for composite and multi-antenna systems. The versatility of the DSAMC slabs is also illustrated where designs with lossy impedance patches on one face of the slab can be optimized for absorber applications while the other face of the slab still exhibits properties of an AMC. Another metamaterial design synthesis targets optimization of metallo-dielectric slabs to act as low-loss matched impedance magneto-dielectric metamaterials (MIMDM). Such designs provide magneto-dielectric material properties over a certain frequency range, allowing miniaturization of planar antennas when used as substrates. Similarly, MIMDM slabs can be designed for the absorber applications, where design equations for synthesizing such absorber materials from MIMDM are established. Finally, small sized rotationally symmetric unit cells are designed and employed as planar electromagnetic bandgap structures for microstrip patch antenna mutual coupling reduction. Advisors/Committee Members: Douglas Henry Werner, Dissertation Advisor/Co-Advisor, Douglas Henry Werner, Committee Chair/Co-Chair, Pingjuan Li Werner, Committee Member, Victor P Pasko, Committee Member, Brian Lewis Weiner, Committee Member, Lyle Norman Long, Committee Member.

Subjects/Keywords: meta-surface; artificial magnetic conductors; wind driven optimization; electromagnetic bandgap; optimization; magneto-dielectrics

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APA (6^th Edition):

Bayraktar, Z. (2011). NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS . (Thesis). Penn State University. Retrieved from https://submit-etda.libraries.psu.edu/catalog/11799

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bayraktar, Zikri. “NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS .” 2011. Thesis, Penn State University. Accessed January 22, 2021. https://submit-etda.libraries.psu.edu/catalog/11799.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bayraktar, Zikri. “NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS .” 2011. Web. 22 Jan 2021.

Vancouver:

Bayraktar Z. NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS . [Internet] [Thesis]. Penn State University; 2011. [cited 2021 Jan 22]. Available from: https://submit-etda.libraries.psu.edu/catalog/11799.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bayraktar Z. NOVEL META-SURFACE DESIGN SYNTHESIS VIA NATURE-INSPIRED OPTIMIZATION ALGORITHMS . [Thesis]. Penn State University; 2011. Available from: https://submit-etda.libraries.psu.edu/catalog/11799

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

21. Goderie, M.W. (author). Enhancement of data-driven turbulence models for wind turbine wake applications.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:5f62c19f-7cf0-4c0b-9cc0-561348e59417

► Wind turbine wakes cause significant reductions in power production and increased fatigue damage for downwind turbines. Thus, they affect the wind levelized cost of energy.… (more)

▼ Wind turbine wakes cause significant reductions in power production and increased fatigue damage for downwind turbines. Thus, they affect the wind levelized cost of energy. Computational Fluid Dynamics (CFD) can be used to quantify the wake characteristics, whereby Reynolds-averaged Navier-Stokes (RANS) has the most potential for industrial applications due to the relatively low computational costs. However, RANS models all turbulence scales, usually done by the linear κ-ε turbulence model, which has significant shortcomings in accurately representing the turbulence characteristics in wind turbine wake applications. This results in an underprediction of the wake deficit. Key reasons for these shortcomings are that the eddy viscosity assumption is not valid in the near wake and that the anisotropic Reynolds stresses are not properly modeled. Also, the direct effects of the turbine forcing is not incorporated in the transport equations. To address for these shortcomings, machine learning can be used to enhance the turbulence model with data-driven corrections. Recent developments showed for fundamental 2D flow cases that a novel algorithm referred to as SpaRTA (Sparse Regression of Turbulent Stress Anisotropy) can be used to discover sparse algebraic turbulence model corrections. These corrections could lead to improved mean-flow fields when trained on high-fidelity data. Disadvantages of SpaRTA are however that it can only cope with a limited input feature set and that the models have difficulty generalizing towards multiple flow regions simultaneously (e.g. free-stream and wake region). To help resolve these disadvantages, mutual information, which is a measure from information theory that quantifies the general dependency between variables, is used to a priori measure the importance of a large number of features to the turbulence model corrections. As a result, the most important features can be used for correction model construction. In addition to this, to improve the model predictions in the turbine's wake, only the data samples located in the wake regions are used for training, discarding the free-stream data. Given that these data are discarded, it cannot be guaranteed that the correction models fit the trends in the free-stream. The correction models must therefore be neutralized by a newly constructed sparse algebraic logistic regression model, which distinguishes the wake from the free-stream region. The data used in this research consists of three time-averaged LES (Large Eddy Simulation) cases with multiple turbines on wind tunnel scale, under neutral conditions. This thesis shows that mutual information can detect most of the essential features, which leads to a good match between the model predictions and the corrections derived from high-fidelity data. Discarding the free-stream samples during model training leads to a further reduction in error in the wake region, both in mean-squared as maximum-squared error of the correction terms. By implementing the constructed algebraic… Advisors/Committee Members: Dwight, R.P. (mentor), Viré, A.C. (mentor), Steiner, J. (mentor), van der Laan, Paul (mentor), Delft University of Technology (degree granting institution), Technical University of Denmark (degree granting institution).

Subjects/Keywords: RANS; CFD; machine learning; data-driven; sparse symbolic regression; classification; Regression; Wind Energy

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Goderie, M. W. (. (2020). Enhancement of data-driven turbulence models for wind turbine wake applications. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5f62c19f-7cf0-4c0b-9cc0-561348e59417

Chicago Manual of Style (16^th Edition):

Goderie, M W (author). “Enhancement of data-driven turbulence models for wind turbine wake applications.” 2020. Masters Thesis, Delft University of Technology. Accessed January 22, 2021. http://resolver.tudelft.nl/uuid:5f62c19f-7cf0-4c0b-9cc0-561348e59417.

MLA Handbook (7^th Edition):

Goderie, M W (author). “Enhancement of data-driven turbulence models for wind turbine wake applications.” 2020. Web. 22 Jan 2021.

Vancouver:

Goderie MW(. Enhancement of data-driven turbulence models for wind turbine wake applications. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Jan 22]. Available from: http://resolver.tudelft.nl/uuid:5f62c19f-7cf0-4c0b-9cc0-561348e59417.

Council of Science Editors:

Goderie MW(. Enhancement of data-driven turbulence models for wind turbine wake applications. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:5f62c19f-7cf0-4c0b-9cc0-561348e59417

22. O'Sullivan, Paul D. Experimental study of single sided ventilation through a multi-configuration slotted louvre system.

Degree: PhD, 2018, Brunel University

URL: http://bura.brunel.ac.uk/handle/2438/16416 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764994

► Evidence based performance of novel ventilation systems in existing low energy buildings is invaluable as it provides data on the system operation in a real… (more)

▼ Evidence based performance of novel ventilation systems in existing low energy buildings is invaluable as it provides data on the system operation in a real dynamic environment. This thesis presents the outcomes from research involving a number of experimental field studies of a single sided ventilation system installed in a single cell office space as part of a building retrofit pilot project in Cork, Ireland. The solution consists of a purpose provided, multi configuration opening, comprising a narrow slotted architectural louvre component split across a low level manual opening section and a high level automated opening section. A review of published research found that little experimental data exists on the performance of such systems and air flow rate correlations developed for plain openings are currently used by designers to make predictions about their performance. Three experimental campaigns were designed and carried out. First, in order to quantify performance of the system, long term and short term monitoring of the internal thermal and air flow environment at the experimental building was completed. Second, ventilation rate measurements in existing and retrofit spaces were completed using a tracer gas concentration decay technique. Thirdly, air flow through the single sided slot louvre opening was investigated. In addition, the annual cooling potential of the multi-configuration system was investigated computationally. Results show there was a significant difference between both thermal environments with the retrofit space consistently displaying lower air temperatures over the cooling season and throughout all Air Change Rate measurement periods. Lower levels of vertical thermal stratification and diurnal temperature variation were also observed. On average, across a wide range of boundary conditions, lower ventilation rates were observed for the slotted louvre system with a narrower spread of values when compared with the existing building. The dominant driving force was either buoyancy or wind depending on the opening configuration adopted in the slotted louvre system. The slot louvre was found to be wind dominant for lower opening heights when compared with a plain opening of the same dimensions. Existing single sided correlations were found to perform better when predicting airflow rates through a plain opening when compared with the slot louvre system and a new dimensionless exchange rate parameter is proposed for predicting wind driven airflow through the slot louvre. Simulations indicate that 80% of annual occupied hours required an enhanced ventilative cooling airflow rate to achieve internal thermal comfort. Using a combination of configurations the system was able to provide the required cooling airflow rate for 93% of the occupied hours.

Subjects/Keywords: Buoyancy & wind driven; Macroscopic air change rate; Dimensionless flow number; Ventilative cooling potential; Airflow characteristics

10 more images…

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APA (6^th Edition):

O'Sullivan, P. D. (2018). Experimental study of single sided ventilation through a multi-configuration slotted louvre system. (Doctoral Dissertation). Brunel University. Retrieved from http://bura.brunel.ac.uk/handle/2438/16416 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764994

Chicago Manual of Style (16^th Edition):

O'Sullivan, Paul D. “Experimental study of single sided ventilation through a multi-configuration slotted louvre system.” 2018. Doctoral Dissertation, Brunel University. Accessed January 22, 2021. http://bura.brunel.ac.uk/handle/2438/16416 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764994.

MLA Handbook (7^th Edition):

O'Sullivan, Paul D. “Experimental study of single sided ventilation through a multi-configuration slotted louvre system.” 2018. Web. 22 Jan 2021.

Vancouver:

O'Sullivan PD. Experimental study of single sided ventilation through a multi-configuration slotted louvre system. [Internet] [Doctoral dissertation]. Brunel University; 2018. [cited 2021 Jan 22]. Available from: http://bura.brunel.ac.uk/handle/2438/16416 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764994.

Council of Science Editors:

O'Sullivan PD. Experimental study of single sided ventilation through a multi-configuration slotted louvre system. [Doctoral Dissertation]. Brunel University; 2018. Available from: http://bura.brunel.ac.uk/handle/2438/16416 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.764994

Florida International University

23. Raji, Farzaneh. Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion.

Degree: PhD, Civil Engineering, 2018, Florida International University

URL: https://digitalcommons.fiu.edu/etd/3904 ; FIDC007003

► This research aims to experimentally investigate the interior damage in residential buildings caused by rainwater intrusion during hurricane events. The first step, to experimentally… (more)

▼ This research aims to experimentally investigate the interior damage in residential buildings caused by rainwater intrusion during hurricane events. The first step, to experimentally evaluate the wind-driven rain effects on the building’s interior, is to accurately simulate the rain field associated with the hurricane. The wind-driven rain simulation was performed at the 12-fan Wall of Wind Experimental Facility at Florida International University. The characteristic of the simulated rain field was compared to a target characteristic obtained from the recorded data from past hurricanes to validate the simulation. In the next step, the large-scale models were subjected to the simulated rain field to observe the water propagation inside the models. The gable and hip roof models were prepared with three different exterior damage conditions, including the light damage state, minor damage state, and moderate damage state, to investigate the effect of envelope openings on the water propagation path. Each model was tested at three wind angles of 0˚, 45˚ and 90˚ to assess the effects of wind direction. The interior of the models was divided into 6 different room compartments separated by partition walls, as well as 6 different attic compartments divided by short divider pieces. Finally, the results were used to evaluate the share of each interior component from the total amount of water that intrudes into the building. The last phase of the research concentrated on the experimental evaluation of the sustained damage by partition walls subjected to water intrusion. The full-scale model was subjected to the simulated rain field at the Wall of Wind Experimental Facility test section. The interior of the model was built to simulate the actual interior of a residential building. The experimental results were used to evaluate the sustained damage by the partition. This research made a great step forward in clarifying the mechanism of interior damage sustained in residential buildings due to rain intrusion during hurricanes. Most important, the results can be used in Hurricane Loss Models to predict the sustained damage on residential buildings at different hurricane hazard levels. Advisors/Committee Members: Ioannis Zisis, Arindam Gan Chowdhury, Peter Irwin, David Garber, Lu Zhang.

Subjects/Keywords: Wind Driven Rain; Interior Damage; Residential Building; Water Intrusion; Civil and Environmental Engineering; Structural Engineering

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APA (6^th Edition):

Raji, F. (2018). Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion. (Doctoral Dissertation). Florida International University. Retrieved from https://digitalcommons.fiu.edu/etd/3904 ; FIDC007003

Chicago Manual of Style (16^th Edition):

Raji, Farzaneh. “Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion.” 2018. Doctoral Dissertation, Florida International University. Accessed January 22, 2021. https://digitalcommons.fiu.edu/etd/3904 ; FIDC007003.

MLA Handbook (7^th Edition):

Raji, Farzaneh. “Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion.” 2018. Web. 22 Jan 2021.

Vancouver:

Raji F. Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion. [Internet] [Doctoral dissertation]. Florida International University; 2018. [cited 2021 Jan 22]. Available from: https://digitalcommons.fiu.edu/etd/3904 ; FIDC007003.

Council of Science Editors:

Raji F. Interior Damage of Residential Building Due to Wind-Driven Rain Intrusion. [Doctoral Dissertation]. Florida International University; 2018. Available from: https://digitalcommons.fiu.edu/etd/3904 ; FIDC007003

Delft University of Technology

24. van Weerdenburg, Roy (author). Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet.

Degree: 2019, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:a0e9e030-0feb-4977-bfcd-2a324a6c65c1

►

Considering scenarios of sea level rise, the sediment budget of the Wadden Sea is of interest for both coastal safety and for the maintenance of… (more)

Subjects/Keywords: tidal inlet system; Ameland Inlet; sediment transport; wind-driven flows; watersheds; Wadden Sea; SEAWAD

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APA (6^th Edition):

van Weerdenburg, R. (. (2019). Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:a0e9e030-0feb-4977-bfcd-2a324a6c65c1

Chicago Manual of Style (16^th Edition):

van Weerdenburg, Roy (author). “Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet.” 2019. Masters Thesis, Delft University of Technology. Accessed January 22, 2021. http://resolver.tudelft.nl/uuid:a0e9e030-0feb-4977-bfcd-2a324a6c65c1.

MLA Handbook (7^th Edition):

van Weerdenburg, Roy (author). “Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet.” 2019. Web. 22 Jan 2021.

Vancouver:

van Weerdenburg R(. Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet. [Internet] [Masters thesis]. Delft University of Technology; 2019. [cited 2021 Jan 22]. Available from: http://resolver.tudelft.nl/uuid:a0e9e030-0feb-4977-bfcd-2a324a6c65c1.

Council of Science Editors:

van Weerdenburg R(. Exploring the relative importance of wind for exchange processes around a tidal inlet system: The case of Ameland Inlet. [Masters Thesis]. Delft University of Technology; 2019. Available from: http://resolver.tudelft.nl/uuid:a0e9e030-0feb-4977-bfcd-2a324a6c65c1

University of Florida

25. Tritinger, Amanda S. The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region.

Degree: PhD, Coastal and Oceanographic Engineering - Civil and Coastal Engineering, 2019, University of Florida

URL: https://ufdc.ufl.edu/UFE0054288

► 2-Dimensional Depth-Integrated (2DDI) models are unable to represent the bottom stress in the nearshore region accurately, mainly because the bottom stress is computed with the… (more)

Subjects/Keywords: 2ddi – 3d – coastal – computational – depth-averaged – modeling – nearshore – storm-surge – vertically-resolved – wind-driven

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APA (6^th Edition):

Tritinger, A. S. (2019). The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region. (Doctoral Dissertation). University of Florida. Retrieved from https://ufdc.ufl.edu/UFE0054288

Chicago Manual of Style (16^th Edition):

Tritinger, Amanda S. “The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region.” 2019. Doctoral Dissertation, University of Florida. Accessed January 22, 2021. https://ufdc.ufl.edu/UFE0054288.

MLA Handbook (7^th Edition):

Tritinger, Amanda S. “The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region.” 2019. Web. 22 Jan 2021.

Vancouver:

Tritinger AS. The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region. [Internet] [Doctoral dissertation]. University of Florida; 2019. [cited 2021 Jan 22]. Available from: https://ufdc.ufl.edu/UFE0054288.

Council of Science Editors:

Tritinger AS. The Influence of Vertical Current Structure on Wind-Driven Surges in the Nearshore Region. [Doctoral Dissertation]. University of Florida; 2019. Available from: https://ufdc.ufl.edu/UFE0054288

Virginia Tech

26. Foster, Erich Leigh. Finite Elements for the Quasi-Geostrophic Equations of the Ocean.

Degree: PhD, Mathematics, 2013, Virginia Tech

URL: http://hdl.handle.net/10919/19362

► The quasi-geostrophic equations (QGE) are usually discretized in space by the finite difference method. The finite element (FE) method, however, offers several advantages over the… (more)

Subjects/Keywords: Quasi-geostrophic equations; finite element method; Argyris element; wind-driven ocean currents.

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APA (6^th Edition):

Foster, E. L. (2013). Finite Elements for the Quasi-Geostrophic Equations of the Ocean. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/19362

Chicago Manual of Style (16^th Edition):

Foster, Erich Leigh. “Finite Elements for the Quasi-Geostrophic Equations of the Ocean.” 2013. Doctoral Dissertation, Virginia Tech. Accessed January 22, 2021. http://hdl.handle.net/10919/19362.

MLA Handbook (7^th Edition):

Foster, Erich Leigh. “Finite Elements for the Quasi-Geostrophic Equations of the Ocean.” 2013. Web. 22 Jan 2021.

Vancouver:

Foster EL. Finite Elements for the Quasi-Geostrophic Equations of the Ocean. [Internet] [Doctoral dissertation]. Virginia Tech; 2013. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/10919/19362.

Council of Science Editors:

Foster EL. Finite Elements for the Quasi-Geostrophic Equations of the Ocean. [Doctoral Dissertation]. Virginia Tech; 2013. Available from: http://hdl.handle.net/10919/19362

27. Mouty, Stéphane. Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine.

Degree: Docteur es, Génie électrique, 2013, Besançon

URL: http://www.theses.fr/2013BESA2034

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Les directives européennes visant à produire 20% de l’énergie à base de sources renouvelables imposent aux gouvernements d’investir dans de nouveaux moyens de production. Un… (more)

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Les directives européennes visant à produire 20% de l’énergie à base de sources renouvelables imposent aux gouvernements d’investir dans de nouveaux moyens de production. Un bilan du marché de l’énergie sera réalisé et permettra de montrer la part des énergies renouvelables dans la consommation d’énergie. Après les moyens de conversion de l’énergie hydraulique, les éoliennes sont les systèmes, utilisant une source renouvelable, les plus rencontrées. Les objectifs fixés ont conduit à s’intéresser à l’installation d’éoliennes en mer. Les contraintes spécifiques rencontrées ont poussé les acteurs du marché à développer de nouveaux systèmes et donc des alternateurs adaptés : utilisation des aimants permanents et de l’attaque directe. La modélisation des machines à aimants permanents est décrite. Une topologie classique est d’abord présentée. D’autres solutions seront ensuite étudiées dans le but d’augmenter les densités de couple. L’une d’elles est la machine à bobinage à pas fractionnaire qui permet d’éviter les enchevêtrements des têtes de bobines. D’autre part, l’utilisation de systèmes polyphasés, permettant d’augmenter la disponibilité des systèmes en autorisant des fonctionnements en modes dégradés, est un moyen intéressant afin d’être en présence de systèmes plus fiables. La démarche, qui a permis d’effectuer le choix du dimensionnement de la génératrice pour répondre au mieux à l’appel d’offre d’un client, est présentée ainsi que les résultats des essais réalisés sur les prototypes. Au final, l’éolienne qui est équipée de cet alternateur a une puissance massique qui est au moins 15% plus importante que les solutions disponibles en 2013 sur le marché.

Given the European guidelines, which consist into producing 20% of the energy from renewable sources, the governments are obliged to invest in new types of production systems. An energy market survey will show the part of renewable energy in the energy consumption. After the hydroelectric systems, the wind turbines are the most common systems using renewable sources. The current objectives have led to consider the installation of offshore wind turbine. The specific limitations led the market players to develop new systems with adapted generators: direct drive permanent magnet generator. Model of the permanent magnet machines is described. First a conventional machine topology is presented, then other solutions will be studied with the objective of increasing the torque density. One of them is the concentrated winding machines where the end winding overlapping is avoided. On the other hand, use multiphase system becomes very interesting in order to increase system reliability and work in fault tolerant modes. The strategy that was adopted for the design of the generator to fit the best the specification is also discussed as well as the results of the tests. At the end, the wind turbine equipped with this alternator, has a power density at least 15% higher than the 2013’s available solutions.

Advisors/Committee Members: Espanet, Christophe (thesis director), Gustin, Frédéric (thesis director).

Subjects/Keywords: Machine électrique; Aimants permanents; Eolien; Attaque directe; Densité de couple; Dimensionnements; Essais; Oscillations de couple; Electric machine; Permanent magnets; Wind; Direct drive; Torque density; Design; Tests; Torque oscillations; 621.4

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Mouty, S. (2013). Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine. (Doctoral Dissertation). Besançon. Retrieved from http://www.theses.fr/2013BESA2034

Chicago Manual of Style (16^th Edition):

Mouty, Stéphane. “Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine.” 2013. Doctoral Dissertation, Besançon. Accessed January 22, 2021. http://www.theses.fr/2013BESA2034.

MLA Handbook (7^th Edition):

Mouty, Stéphane. “Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine.” 2013. Web. 22 Jan 2021.

Vancouver:

Mouty S. Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine. [Internet] [Doctoral dissertation]. Besançon; 2013. [cited 2021 Jan 22]. Available from: http://www.theses.fr/2013BESA2034.

Council of Science Editors:

Mouty S. Conception de machines à aimants permanents à haute densité de couple pour les éoliennes de forte puissance : Design of high torque density permanent magnet machine for high power wind turbine. [Doctoral Dissertation]. Besançon; 2013. Available from: http://www.theses.fr/2013BESA2034

28. Nutz, Alexis. La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body.

Degree: Docteur es, Sciences de la Terre, de l'Univers et de l'environnement, 2013, Université de Strasbourg

URL: http://www.theses.fr/2013STRAH016

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Dans ce travail de thèse, certaines étendues d’eaux continentales regroupant plusieurs types de système de dépôt comme les lacs, mers intérieures et lagunes ont été… (more)

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Dans ce travail de thèse, certaines étendues d’eaux continentales regroupant plusieurs types de système de dépôt comme les lacs, mers intérieures et lagunes ont été regroupées au sein d'un nouveau groupe de système sédimentaire mentionnés sous l'appellation de Wind-driven Water Body (WWB).Afin de caractériser l'évolution et l'enregistrement sédimentaire d'un exemple de WWB, une étude sédimentologique intégrée du bassin quaternaire du Lac Saint-Jean (Québec, Canada) a été menée à partir d'une approche intégrant géologie de terrain et imagerie géophysique très haute résolution (CHIRP 2D). A l'échelle du cortège sédimentaire, le régime glaciaire à paraglaciaire de la sédimentation et le rebond glacio-isostatique ont contrôlé au premier ordre, à la fois la succession lithologique et les architectures grandes échelles du bassin pour générer un Cortège de Régression Forcée (CRF) atypique. Au sein de ce cortège de régression forcée fini-glaciaire, une dynamique de système WWB s'est progressivement affirmée à partir de 8,5 cal. ka BP. Elle s'est exprimée par la mise en place d'une dynamique littorale importante occasionnellement associée à une circulation interne générant des courants de fonds lors d'épisodes de vents forts.Finalement, l'analyse sédimentologique du bassin du Lac Saint-Jean a permis de dégager plusieurs interprétations ayant attrait (1) à l'évolution des systèmes WWB et (2) aux séquences de déglaciation en domaine précédemment englacé. De plus, ce travail représente une contribution à l'échelle régionale pour les modalités de la dernière déglaciation du Sud-Est du Québec.

In this study, a certain number of continental enclosed basins including several depositional systems such as lakes, inland seas or lagoons have been grouped in a new sort of sedimentary system referred to as Wind driven Water Body. To characterize the sedimentary evolution and record of a WWB basin, an integrated sedimentological study has been carried out on the quaternary Saint-Jean basin (Québec, Canada) based on field onshore geology and offshore geophysics (CHIRP 2D).At the system-tract scale, the glacial to paraglacial sedimentation and the glacio-isostatic rebound controlled at first-order the lithofacies succession and large-scale architectures to generate an original Falling Stage System Tract (FSST). Within this FSST, since 8.5 cal. ka BP a WWB related sedimentary evolution overprinted the glacial to paraglacial evolution. This expressed in the form of the emplacement of an important coastal dynamics, occasionally accompanied by a lake-scale hydrodynamics at the origins of bottom currents during strong wind to storm events.Finally, the sedimentological analysis of the Saint-Jean basin brought numerous interpretations related to (1) the sedimentary evolution of WWB systems and (2) deglaciation sequences in previously glaciated domains. In addition, this work supplements the regional quaternary framework concerning the latest deglaciation evolution in southeast Quebec.

Advisors/Committee Members: Duringer, Philippe (thesis director).

Subjects/Keywords: Bassin continental; Tardi-Pléistocène/Holocène; Wind-driven Water Body; Hydrodynamique contrôlé vent; Cortège régression forcée; Continental basin; Late Pleistocene/Holocene; Wind-driven Water Body; Wind-driven hydrodynamics; Falling Stage System Tract; 551.3

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nutz, A. (2013). La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body. (Doctoral Dissertation). Université de Strasbourg. Retrieved from http://www.theses.fr/2013STRAH016

Chicago Manual of Style (16^th Edition):

Nutz, Alexis. “La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body.” 2013. Doctoral Dissertation, Université de Strasbourg. Accessed January 22, 2021. http://www.theses.fr/2013STRAH016.

MLA Handbook (7^th Edition):

Nutz, Alexis. “La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body.” 2013. Web. 22 Jan 2021.

Vancouver:

Nutz A. La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body. [Internet] [Doctoral dissertation]. Université de Strasbourg; 2013. [cited 2021 Jan 22]. Available from: http://www.theses.fr/2013STRAH016.

Council of Science Editors:

Nutz A. La déglaciation du bassin du Lac Saint-Jean (Wisconsinien/Holocène, Québec, Canada) : enregistrement d'une régression forcée glacio-isostatique et de l'hydrodynamique d'un système fermé contrôlé par le vent : The Saint-Jean basin deglaciation (Wisconsinian/Holocene, Quebec, Canada) : record of a glacio-isostatic forced regression and hydrodynamics of an enclosed wind-driven water body. [Doctoral Dissertation]. Université de Strasbourg; 2013. Available from: http://www.theses.fr/2013STRAH016

Brno University of Technology

29. Hrazdíra, Zdeněk. Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/83273

► This thesis deals with mathematical modeling of multiphysics FSI (fluid-structure interaction) problem, describing mutual interaction of pressure pulsations and vibrations of indirect pipe in a… (more)

Subjects/Keywords: Tlakové pulsace; kmitání nepřímé trubice; vlastní kmitání; tlumené kmitání; vynucené kmitání; vzájemná interakce; vlastní frekvence; rezonance; Pressure pulsations; indirect pipe vibration; natural oscillations; damped oscillations; driven oscillations; mutual interaction; natural frequency; resonance

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hrazdíra, Z. (2019). Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/83273

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hrazdíra, Zdeněk. “Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe.” 2019. Thesis, Brno University of Technology. Accessed January 22, 2021. http://hdl.handle.net/11012/83273.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hrazdíra, Zdeněk. “Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe.” 2019. Web. 22 Jan 2021.

Vancouver:

Hrazdíra Z. Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/11012/83273.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hrazdíra Z. Vzájemná interakce tlakových pulsací a kmitání nepřímé trubice: Mutual interaction of pressure pulsations and pulsations of undirect pipe. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/83273

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rhodes University

30. Lotz, Stefanus Ignatius. Empirical modelling of the solar wind influence on Pc3 pulsation activity.

Degree: Faculty of Science, Physics and Electronics, 2012, Rhodes University

URL: http://hdl.handle.net/10962/d1005249

► Geomagnetic pulsations are ultra-low frequency (ULF) oscillations of the geomagnetic field that have been observed in the magnetosphere and on the Earth since the 1800’s.… (more)

▼ Geomagnetic pulsations are ultra-low frequency (ULF) oscillations of the geomagnetic field that have been observed in the magnetosphere and on the Earth since the 1800’s. In the 1960’s in situ observations of the solar wind suggested that the source of pulsation activity must lie beyond the magnetosphere. In this work the influence of several solar wind plasma and interplanetary magnetic field (IMF) parameters on Pc3 pulsations are studied. Pc3 pulsations are a class of geomagnetic pulsations with frequency ranging between 22 and 100 mHz. A large dataset of solar wind and pulsation measurements is employed to develop two empirical models capable of predicting the Pc3 index (an indication of Pc3 intensity) at one hour and five minute time resolution, respectively. The models are based on artificial neural networks, due to their ability to model highly non-linear interactions between dependent and independent variables. A robust, iterative process is followed to find and rank the set of solar wind input parameters that optimally predict Pc3 activity. According to the parameter selection process the input parameters to the low resolution model (1 hour data) are, in order of importance, solar wind speed, a pair of time-based parameters, dynamic solar wind pressure, and the IMF orientation with respect to the Sun-Earth line (i.e. the cone angle). Input parameters to the high resolution model (5 minute data) are solar wind speed, cone angle, solar wind density and a pair of time-based parameters. Both models accurately predict Pc3 intensity from unseen solar wind data. It is observed that Pc3 activity ceases when the density in the solar wind is very low, even while other conditions are favourable for the generation and propagation of ULF waves. The influence that solar wind density has on Pc3 activity is studied by analysing six years of solar wind and Pc3 measurements at one minute resolution. It is suggested that the pause in Pc3 activity occurs due to two reasons: Firstly, the ULF waves that are generated in the region upstream of the bow shock does not grow efficiently if the solar wind density is very low; and secondly, waves that are generated cannot be convected into the magnetosphere because of the low Mach number of the solar wind plasma due to the decreased density.

Subjects/Keywords: Solar wind – Research; Solar activity – Research; Stellar oscillations – Research; Magnetospheric radio wave propagation; Interplanetary magnetic fields

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lotz, S. I. (2012). Empirical modelling of the solar wind influence on Pc3 pulsation activity. (Thesis). Rhodes University. Retrieved from http://hdl.handle.net/10962/d1005249

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lotz, Stefanus Ignatius. “Empirical modelling of the solar wind influence on Pc3 pulsation activity.” 2012. Thesis, Rhodes University. Accessed January 22, 2021. http://hdl.handle.net/10962/d1005249.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lotz, Stefanus Ignatius. “Empirical modelling of the solar wind influence on Pc3 pulsation activity.” 2012. Web. 22 Jan 2021.

Vancouver:

Lotz SI. Empirical modelling of the solar wind influence on Pc3 pulsation activity. [Internet] [Thesis]. Rhodes University; 2012. [cited 2021 Jan 22]. Available from: http://hdl.handle.net/10962/d1005249.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lotz SI. Empirical modelling of the solar wind influence on Pc3 pulsation activity. [Thesis]. Rhodes University; 2012. Available from: http://hdl.handle.net/10962/d1005249

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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