subject:(Coupled simulation models)

Michigan State University

1. Chowdhury, Rahnuma Rifat. Modeling and simulation of strongly coupled plasmas.

Degree: 2016, Michigan State University

URL: http://etd.lib.msu.edu/islandora/object/etd:4314

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Thesis M.S. Michigan State University. Electrical Engineering 2016

The objective of this work is to develop new modeling and simulation tools for studying strongly coupled… (more)

Subjects/Keywords: Strongly coupled plasmas – Mathematical models; Strongly coupled plasmas – Computer simulation; Electrical engineering

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APA (6^th Edition):

Chowdhury, R. R. (2016). Modeling and simulation of strongly coupled plasmas. (Thesis). Michigan State University. Retrieved from http://etd.lib.msu.edu/islandora/object/etd:4314

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):

Chowdhury, Rahnuma Rifat. “Modeling and simulation of strongly coupled plasmas.” 2016. Thesis, Michigan State University. Accessed March 05, 2021. http://etd.lib.msu.edu/islandora/object/etd:4314.

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

MLA Handbook (7^th Edition):

Chowdhury, Rahnuma Rifat. “Modeling and simulation of strongly coupled plasmas.” 2016. Web. 05 Mar 2021.

Vancouver:

Chowdhury RR. Modeling and simulation of strongly coupled plasmas. [Internet] [Thesis]. Michigan State University; 2016. [cited 2021 Mar 05]. Available from: http://etd.lib.msu.edu/islandora/object/etd:4314.

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

Council of Science Editors:

Chowdhury RR. Modeling and simulation of strongly coupled plasmas. [Thesis]. Michigan State University; 2016. Available from: http://etd.lib.msu.edu/islandora/object/etd:4314

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

University of Alberta

2. Gu, Fagang. Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery.

Degree: PhD, Department of Civil and Environmental Engineering, 2009, University of Alberta

URL: https://era.library.ualberta.ca/files/v979v311w

► Coalbeds are an extremely complicated porous medium with characteristics of heterogeneity, dual porosity and stress sensitivity. In the past decades great achievements have been made… (more)

▼ Coalbeds are an extremely complicated porous medium with characteristics of heterogeneity, dual porosity and stress sensitivity. In the past decades great achievements have been made to the simulation models of pressure depletion coalbed methane (CBM) recovery process and CO2 sequestration and enhanced coalbed methane (ECBM) recovery process. However, some important mechanisms are still not or not properly included. Among them, the influence of geomechanics is probably the most important one. Because of its influence coalbed permeability, the key parameter for the success of recovery processes, changes drastically with alterations of in situ stresses and strains during these processes. In present reservoir simulators, the change of coalbed permeability is estimated with analytical models. Due to the assumptions and over simplifications analytical models have limitations or problems in application. In this research to properly estimate the changes of permeability and porosity in the simulation of CO2 sequestration and ECBM recovery process, comprehensive permeability and porosity models have been developed with minimum assumptions and simulation methods established. Firstly, a set of continuum medium porosity and permeability coupling models is built up and a simulation procedure to apply these models in reservoir and geomechanical coupled simulations proposed. Using the models and simulation procedure a sensitivity study, mainly on the parameters related to coalbed permeability change and deformation, has been made for the CBM recovery process. Then based on the understanding, a set of discontinuum medium porosity and permeability coupling models is developed and a procedure to apply these models in reservoir and geomechanical coupled simulations presented. The new models are more comprehensive and adaptable, and can accommodate a wide range of coalbeds and in situ conditions. The proposed equivalent continuum deformation model for coal mass is validated by simulating a set of lab tests including a uniaxial compression test in vacuum and a CO2 swelling test under axial constraint in the longitudinal (vertical) direction. At last the discontinuum medium porosity and permeability coupling models and the simulation procedure are successfully applied to simulate part of a series of micro-pilot tests of ECBM and CO2 sequestration at Fenn Big Valley of Alberta, Canada.

Subjects/Keywords: Methane; CO2; Permeability; Models; Sequestration; Geomechanical; Enhanced; Coupled; Coalbed; Simulation; Porosity; Reservoir; Recovery

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

APA (6^th Edition):

Gu, F. (2009). Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery. (Doctoral Dissertation). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/v979v311w

Chicago Manual of Style (16^th Edition):

Gu, Fagang. “Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery.” 2009. Doctoral Dissertation, University of Alberta. Accessed March 05, 2021. https://era.library.ualberta.ca/files/v979v311w.

MLA Handbook (7^th Edition):

Gu, Fagang. “Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery.” 2009. Web. 05 Mar 2021.

Vancouver:

Gu F. Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery. [Internet] [Doctoral dissertation]. University of Alberta; 2009. [cited 2021 Mar 05]. Available from: https://era.library.ualberta.ca/files/v979v311w.

Council of Science Editors:

Gu F. Reservoir and geomechanical coupled simulation of CO2 sequestration and enhanced coalbed methane recovery. [Doctoral Dissertation]. University of Alberta; 2009. Available from: https://era.library.ualberta.ca/files/v979v311w

Queensland University of Technology

3. Jayasinghe, Laddu Bhagya. Blast response and vulnerability assessment of piled foundations.

Degree: 2014, Queensland University of Technology

URL: https://eprints.qut.edu.au/71184/

This research treated the response of pile foundations to blast loads. The influence of important parameters was investigated. The research techniques and the results will enable safer design of pile foundations that are vulnerable to blast loads.

Subjects/Keywords: Blast analysis; Underground explosion; Surface explosion; Pile foundation; Reinforecd concrete; Numerical simulation; Finite element method; Fully coupled analysis; Material models; Pile damage

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

APA (6^th Edition):

Jayasinghe, L. B. (2014). Blast response and vulnerability assessment of piled foundations. (Thesis). Queensland University of Technology. Retrieved from https://eprints.qut.edu.au/71184/

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):

Jayasinghe, Laddu Bhagya. “Blast response and vulnerability assessment of piled foundations.” 2014. Thesis, Queensland University of Technology. Accessed March 05, 2021. https://eprints.qut.edu.au/71184/.

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

MLA Handbook (7^th Edition):

Jayasinghe, Laddu Bhagya. “Blast response and vulnerability assessment of piled foundations.” 2014. Web. 05 Mar 2021.

Vancouver:

Jayasinghe LB. Blast response and vulnerability assessment of piled foundations. [Internet] [Thesis]. Queensland University of Technology; 2014. [cited 2021 Mar 05]. Available from: https://eprints.qut.edu.au/71184/.

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

Council of Science Editors:

Jayasinghe LB. Blast response and vulnerability assessment of piled foundations. [Thesis]. Queensland University of Technology; 2014. Available from: https://eprints.qut.edu.au/71184/

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

4. Dunlap, Ralph S. Effective reuse of coupling technologies for Earth System Models.

Degree: PhD, Computer Science, 2013, Georgia Tech

URL: http://hdl.handle.net/1853/48943

► Designing and implementing coupled Earth System Models (ESMs) is a challenge for climate scientists and software engineers alike. Coupled models incorporate two or more independent… (more)

▼ Designing and implementing coupled Earth System Models (ESMs) is a challenge for climate scientists and software engineers alike. Coupled models incorporate two or more independent numerical models into a single application, allowing for the simulation of complex feedback effects. As ESMs increase in sophistication, incorporating higher fidelity models of geophysical processes, developers are faced with the issue of managing increasing software complexity. Recently, reusable coupling software has emerged to aid developers in building coupled models. Effective reuse of coupling infrastructure means increasing the number of coupling functions reused, minimizing code duplication, reducing the development time required to couple models, and enabling flexible composition of coupling infrastructure with existing constituent model implementations. Despite the widespread availability of software packages that provide coupling infrastructure, effective reuse of coupling technologies remains an elusive goal: coupling models is effort-intensive, often requiring weeks or months of developer time to work through implementation details, even when starting from a set of existing software components. Coupling technologies are never used in isolation: they must be integrated with multiple existing constituent models to provide their primary services, such as model-to-model data communication and transformation. Unfortunately, the high level of interdependence between coupling concerns and scientific concerns has resulted in high interdependence between the infrastructure code and the scientific code within a model’s implementation. These dependencies are a source of complexity which tends to reduce reusability of coupling infrastructure. This dissertation presents mechanisms for increasing modeler productivity based on improving reuse of coupling infrastructure and raising the level of abstraction at which modelers work. This dissertation argues that effective reuse of coupling technologies can be achieved by decomposing existing coupling technologies into a salient set of implementation-independent features required for coupling high-performance models, increasing abstraction levels at which model developers work, and facilitating integration of coupling infrastructure with constituent models via component-based modularization of coupling features. The contributions of this research include: (1) a comprehensive feature model that identifies the multi-dimensional design space of coupling technologies used in high-performance Earth System Models, (2) Cupid, a domain-specific language and compiler for specifying coupling configurations declaratively and generating their implementations automatically, and (3) Component-based Coupling Operators (CC-Ops), a modular approach to code reuse of coupling infrastructure based on component technologies for high-performance scientific settings. The Cupid domain-specific language is evaluated by specifying a coupling configuration for an example fluid dynamics model and measuring… Advisors/Committee Members: Rugaber, Spencer (advisor), Mark, Leo (advisor), Bader, David (committee member), Navathe, Shamkant (committee member), Balaji, Venkatramani (committee member).

Subjects/Keywords: Coupled models; Coupling; Earth system model; Software reuse; Component-based software engineering; Domain-specific language; Feature modeling; Earth sciences; Computer simulation; Coupled problems (Complex systems); System analysis; Computer software Reusablility

…150 xi SUMMARY Designing and implementing coupled Earth System Models (ESMs) is… …a challenge for climate scientists and software engineers alike. Coupled models… …in building coupled models. Effective reuse of coupling infrastructure means increasing the… …Coupled Climate Models Modern coupled general circulation models (GCMs) have their… …Over the past sixty years, the predictive capability of coupled general circulation models…

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

APA (6^th Edition):

Dunlap, R. S. (2013). Effective reuse of coupling technologies for Earth System Models. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/48943

Chicago Manual of Style (16^th Edition):

Dunlap, Ralph S. “Effective reuse of coupling technologies for Earth System Models.” 2013. Doctoral Dissertation, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/48943.

MLA Handbook (7^th Edition):

Dunlap, Ralph S. “Effective reuse of coupling technologies for Earth System Models.” 2013. Web. 05 Mar 2021.

Vancouver:

Dunlap RS. Effective reuse of coupling technologies for Earth System Models. [Internet] [Doctoral dissertation]. Georgia Tech; 2013. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/48943.

Council of Science Editors:

Dunlap RS. Effective reuse of coupling technologies for Earth System Models. [Doctoral Dissertation]. Georgia Tech; 2013. Available from: http://hdl.handle.net/1853/48943

Georgia Tech

5. Gbologah, Franklin Ekoue. Development of a multimodal port freight transportation model for estimating container throughput.

Degree: MS, Civil and Environmental Engineering, 2010, Georgia Tech

URL: http://hdl.handle.net/1853/34817

► Computer based simulation models have often been used to study the multimodal freight transportation system. But these studies have not been able to dynamically couple… (more)

▼ Computer based simulation models have often been used to study the multimodal freight transportation system. But these studies have not been able to dynamically couple the various modes into one model; therefore, they are limited in their ability to inform on dynamic system level interactions. This research thesis is motivated by the need to dynamically couple the multimodal freight transportation system to operate at multiple spatial and temporal scales. It is part of a larger research program to develop a systems modeling framework applicable to freight transportation. This larger research program attempts to dynamically couple railroad, seaport, and highway freight transportation models. The focus of this thesis is the development of the coupled railroad and seaport models. A separate volume (Wall 2010) on the development of the highway model has been completed. The model railroad and seaport was developed using Arena® simulation software and it comprises of the Ports of Savannah, GA, Charleston, NC, Jacksonville, FL, their adjacent CSX rail terminal, and connecting CSX railroads in the southeastern U.S. However, only the simulation outputs for the Port of Savannah are discussed in this paper. It should be mentioned that the modeled port layout is only conceptual; therefore, any inferences drawn from the model's outputs do not represent actual port performance. The model was run for 26 continuous simulation days, generating 141 containership calls, 147 highway truck deliveries of containers, 900 trains, and a throughput of 28,738 containers at the Port of Savannah, GA. An analysis of each train's trajectory from origin to destination shows that trains spend between 24 - 67 percent of their travel time idle on the tracks waiting for permission to move. Train parking demand analysis on the adjacent shunting area at the multimodal terminal seems to indicate that there aren't enough containers coming from the port because the demand is due to only trains waiting to load. The simulation also shows that on average it takes containerships calling at the Port of Savannah about 3.2 days to find an available dock to berth and unload containers. The observed mean turnaround time for containerships was 4.5 days. This experiment also shows that container residence time within the port and adjacent multimodal rail terminal varies widely. Residence times within the port range from about 0.2 hours to 9 hours with a mean of 1 hour. The average residence time inside the rail terminal is about 20 minutes but observations varied from as little as 2 minutes to a high of 2.5 hours. In addition, about 85 percent of container residence time in the port is spent idle. This research thesis demonstrates that it is possible to dynamically couple the different sub-models of the multimodal freight transportation system. However, there are challenges that need to be addressed by future research. The principal challenge is the development of a more efficient train movement algorithm that can incorporate the actual Direct Traffic Control… Advisors/Committee Members: Rodgers, Michael (Committee Chair), Guensler, Randall (Committee Member), Hunter, Michael (Committee Member).

Subjects/Keywords: Container idle time; Train idle time; Container residence time; System modeling framework; Discrete modeling process; Vissim; Dynamically coupled models; Arena; Computer simulation; Container port model; Railroad network model; Harbors Design and construction; Harbors; Container terminals

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

APA (6^th Edition):

Gbologah, F. E. (2010). Development of a multimodal port freight transportation model for estimating container throughput. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/34817

Chicago Manual of Style (16^th Edition):

Gbologah, Franklin Ekoue. “Development of a multimodal port freight transportation model for estimating container throughput.” 2010. Masters Thesis, Georgia Tech. Accessed March 05, 2021. http://hdl.handle.net/1853/34817.

MLA Handbook (7^th Edition):

Gbologah, Franklin Ekoue. “Development of a multimodal port freight transportation model for estimating container throughput.” 2010. Web. 05 Mar 2021.

Vancouver:

Gbologah FE. Development of a multimodal port freight transportation model for estimating container throughput. [Internet] [Masters thesis]. Georgia Tech; 2010. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/1853/34817.

Council of Science Editors:

Gbologah FE. Development of a multimodal port freight transportation model for estimating container throughput. [Masters Thesis]. Georgia Tech; 2010. Available from: http://hdl.handle.net/1853/34817

6. Κιμουλάκης, Νικόλαος. Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό.

Degree: 2010, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ)

URL: http://hdl.handle.net/10442/hedi/18842

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The present thesis, concerns the design procedure, modeling and implementation of the optimal configuration of the electric part of an experimental power plant, as well… (more)

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The present thesis, concerns the design procedure, modeling and implementation of the optimal configuration of the electric part of an experimental power plant, as well as the study of alternative generating unit configurations in the case of power generation from sea waves. An experimental power plant for power generation from sea waves was constructed on Psitalia in the frame of the research project PAVET 00BE142 entitled “Experimental Plant for Power Generation from Sea Waves”. The entire plant consisted of three similar units, each one involving a coupled hydraulic - mechanical - electrical system for wave energy extraction. Moreover, the case of linear synchronous generator with permanent magnets (LPMSG), as alternative unit for electric power generation from sea waves, has been studied. A particular, linear generator with permanent magnets was designed, accounting the features of the sea wave and the behaviour of the floating buoy. Appropriate coupled electromagnetic-mechanical-hydraulic models incorporating Finite Element Analysis (FEA) have been developed, enabling a dynamic simulation of the whole system performance involving a detailed field analysis of the permanent magnet linear generator. Also, a new hybrid simulation model, incorporating finite elements (FE) combined with analytical solution (macroelement) in the air gap area accounting for skewed magnets in linear generators (LPMSG) have been developed. The results of simulation of performance combined with the experimental measurements, illustrate the suitability of the developed models in applications for power generation from sea waves.

Στα πλαίσια της παρούσας εργασίας διερευνήθηκαν οι πιθανές εναλλακτικές διαμορφώσεις συζευγμένων ηλεκτρομηχανικών συστημάτων, κατάλληλων για την παραγωγή ηλεκτρικής ενέργειας από τον θαλάσσιο κυμάτισμά. Επίσης αναπτύχθηκαν κατάλληλα αριθμητικά μοντέλα για την προσομοίωση της λειτουργίας των απαιτούμενων συζευγμένων υποσυστημάτων (υδραυλικού - μηχανικού - ηλεκτρικού), για την σύνθεση μιας μονάδας ηλεκτροπαραγωγής με εκμετάλλευση την ενέργειας του θαλάσσιου κυματισμού. Τα μοντέλα εφαρμόστηκαν σε επιδεικτικό πειραματικό σταθμό μετατροπής της ενέργειας των θαλάσσιών κυμάτων σε ηλεκτρική, που κατασκευάστηκε στην Ψυτάλλεια στα πλαίσια του ερευνητικού έργου ΠΑΒΕΤ 00ΒΕ142, με τίτλο «Πειραματικός σταθμός παραγωγής ηλεκτρικής ενέργειας από θαλάσσιο κυμάτισμά». Ως εναλλακτικοί τύποι γεννητριών που μπορούν να χρησιμοποιηθούν για την ηλεκτροπαραγωγή από θαλάσσιο κυμάτισμά, εξετάστηκαν η γεννήτρια συνεχούς ρεύματος ξένης διέγερσης και η γραμμική γεννήτρια μονίμων μαγνητών. Τα δύο είδη γεννητριών, απαιτούν πλήρη ανάλυση της κατανομής του μαγνητικού τους πεδίου, καθώς ο εφαρμοζόμενος έλεγχος με στόχο την βελτιστοποίηση της παραγόμενης ενέργειας ακόμη και από κυμάτισμά χαμηλού ενεργειακού περιεχομένου, μπορεί να οδηγήσει σε βραχυχρόνια εμφάνιση φαινομένων τοπικού κορεσμού στο μαγνητικό υλικό των γεννητριών. Για την ανάλυση της κατανομής του μαγνητικού πεδίου γραμμικών γεννητριών μονίμων μαγνητών, αναπτύχθηκε μια νέα μεικτή τεχνική…

Subjects/Keywords: Ηλεκτροπαραγωγή από θαλάσσιο κυματισμό; Συζευγμένα μοντέλα προσομοίωσης; Μέθοδος πεπερασμένων στοιχείων; Μεικτή τεχνική πεπερασμένων στοιχείων - αναλυτικών λύσεων; Γραμμική γεννήτρια μονίμων μαγνητών; Κλίση μαγνητών; Power generation from sea waves; Wave energy extraction; Coupled simulation models; Finite elements method; Special air gap macroelement; Linear permanent magnet generator; Magnet skew

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

APA (6^th Edition):

Κιμουλάκης, . �. (2010). Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό. (Thesis). National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Retrieved from http://hdl.handle.net/10442/hedi/18842

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):

Κιμουλάκης, Νικόλαος. “Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό.” 2010. Thesis, National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ). Accessed March 05, 2021. http://hdl.handle.net/10442/hedi/18842.

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

MLA Handbook (7^th Edition):

Κιμουλάκης, Νικόλαος. “Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό.” 2010. Web. 05 Mar 2021.

Vancouver:

Κιμουλάκης �. Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό. [Internet] [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2010. [cited 2021 Mar 05]. Available from: http://hdl.handle.net/10442/hedi/18842.

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

Council of Science Editors:

Κιμουλάκης �. Ανάπτυξη και σύγκριση εναλλακτικών συζευγμένων ηλεκτρομηχανικών συστημάτων για ηλεκτροπαραγωγή από θαλάσσιο κυματισμό. [Thesis]. National Technical University of Athens (NTUA); Εθνικό Μετσόβιο Πολυτεχνείο (ΕΜΠ); 2010. Available from: http://hdl.handle.net/10442/hedi/18842

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

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