subject:(drag area)

Brigham Young University

1. Luke, Mark Elden. Predicting Drag Polars For Micro Air Vehicles.

Degree: MS, 2003, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1107&context=etd

► Drag polars for three Micro Air Vehicles (MAVs) were measured at Reynolds numbers of 70,000, 50,000, 30,000, and 10,000 and compared to predictions generated using… (more)

Subjects/Keywords: Micro Air Vehicle; MAV; low Reynolds number; drag polar; predicted vs. measured; wind tunnel; force balance; Cfe; equivalent skin friction coefficient; e0; oswald efficiency; CL; minD; lift coefficient; drag coefficient; drag polar prediction; angle of attack; wetted surface area ratio; wing loading; aspect ratio; parasite drag coefficient; drag due to lift; aerodynamics; Mechanical Engineering

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Luke, M. E. (2003). Predicting Drag Polars For Micro Air Vehicles. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1107&context=etd

Chicago Manual of Style (16^th Edition):

Luke, Mark Elden. “Predicting Drag Polars For Micro Air Vehicles.” 2003. Masters Thesis, Brigham Young University. Accessed January 18, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1107&context=etd.

MLA Handbook (7^th Edition):

Luke, Mark Elden. “Predicting Drag Polars For Micro Air Vehicles.” 2003. Web. 18 Jan 2021.

Vancouver:

Luke ME. Predicting Drag Polars For Micro Air Vehicles. [Internet] [Masters thesis]. Brigham Young University; 2003. [cited 2021 Jan 18]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1107&context=etd.

Council of Science Editors:

Luke ME. Predicting Drag Polars For Micro Air Vehicles. [Masters Thesis]. Brigham Young University; 2003. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=1107&context=etd

Brno University of Technology

2. Hlaváč, Martin. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/189467

► This thesis describes challenges in designing, developing and testing web user interfaces. It discusses human-computer interaction, communication channels and user interface analogy to the real… (more)

Subjects/Keywords: uživatelské rozhraní; uživatelská zkušenost; interakce člověka a stroje; rozhraní; software; real time tactics; rtt; real time strategy; rts; massverse; hra; webová hra; b5game; html; javascript; html5; webová aplikace; návrh uživatelského rozhraní; testování uživatelského rozhraní; a-b testování; hallway usability test; webová analýza; komunikační kanály; analogie uživatelského rozhraní k reálnému světu; drag & drop; gamifikace; zaměření uživatelského rozhraní na uživatele; webové uživatelské rozhraní; webové kompoenty; návrhové vzory; webové wireframy; herní plocha; ovládaní her; user interface; user experience; human-computer interaction; interface; software; real time tactics; rtt; real time strategy; rts; massverse; game; web game; b5game; html; javascript; html5; web application; user interface design; user interface testing; a-b testing; hallway usability test; web analysis; communication channels; user interface analogy to real world; drag & drop; gamification; user focus on user interface; web user interface; web components; design patterns; web wireframes; game area; controlling games

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Hlaváč, M. (2020). Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/189467

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):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/189467.

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

MLA Handbook (7^th Edition):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Web. 18 Jan 2021.

Vancouver:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/189467.

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

Council of Science Editors:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/189467

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

Brno University of Technology

3. Hlaváč, Martin. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/188283

► This thesis describes challenges in designing, developing and testing web user interfaces. It discusses human-computer interaction, communication channels and user interface analogy to the real… (more)

Subjects/Keywords: uživatelské rozhraní; uživatelská zkušenost; interakce člověka a stroje; rozhraní; software; real time tactics; rtt; real time strategy; rts; massverse; hra; webová hra; b5game; html; javascript; html5; webová aplikace; návrh uživatelského rozhraní; testování uživatelského rozhraní; a-b testování; hallway usability test; webová analýza; komunikační kanály; analogie uživatelského rozhraní k reálnému světu; drag & drop; gamifikace; zaměření uživatelského rozhraní na uživatele; webové uživatelské rozhraní; webové kompoenty; návrhové vzory; webové wireframy; herní plocha; ovládaní her; user interface; user experience; human-computer interaction; interface; software; real time tactics; rtt; real time strategy; rts; massverse; game; web game; b5game; html; javascript; html5; web application; user interface design; user interface testing; a-b testing; hallway usability test; web analysis; communication channels; user interface analogy to real world; drag & drop; gamification; user focus on user interface; web user interface; web components; design patterns; web wireframes; game area; controlling games

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Hlaváč, M. (2020). Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/188283

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):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/188283.

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

MLA Handbook (7^th Edition):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Web. 18 Jan 2021.

Vancouver:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/188283.

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

Council of Science Editors:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/188283

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

Brno University of Technology

4. Kóňa, Marián. Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/40280

► This master thesis is focused on aerodynamic design of transonic glider, which is assigned for following an airliner at cruising regime of flight. Main goal… (more)

Subjects/Keywords: Transsonika; kluzák; Whitcombovo pravidlo ploch; polára; hmotnostní rozbor; podélná statická stabilita; centráž; Transonic; glider; Whitcomb area rule; drag polar; mass analysis; longitudinal static stability; center of gravity position

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kóňa, M. (2019). Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/40280

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):

Kóňa, Marián. “Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider.” 2019. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/40280.

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

MLA Handbook (7^th Edition):

Kóňa, Marián. “Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider.” 2019. Web. 18 Jan 2021.

Vancouver:

Kóňa M. Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/40280.

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

Council of Science Editors:

Kóňa M. Aerodynamický návrh transsonického bezpilotního kluzáku: Aerodynamic design of transonic UAV glider. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/40280

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

Brno University of Technology

5. Hlaváč, Martin. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.

Degree: 2020, Brno University of Technology

URL: http://hdl.handle.net/11012/55162

► This thesis describes challenges in designing, developing and testing web user interfaces. It discusses human-computer interaction, communication channels and user interface analogy to the real… (more)

Subjects/Keywords: uživatelské rozhraní; uživatelská zkušenost; interakce člověka a stroje; rozhraní; software; real time tactics; rtt; real time strategy; rts; massverse; hra; webová hra; b5game; html; javascript; html5; webová aplikace; návrh uživatelského rozhraní; testování uživatelského rozhraní; a-b testování; hallway usability test; webová analýza; komunikační kanály; analogie uživatelského rozhraní k reálnému světu; drag & drop; gamifikace; zaměření uživatelského rozhraní na uživatele; webové uživatelské rozhraní; webové kompoenty; návrhové vzory; webové wireframy; herní plocha; ovládaní her; user interface; user experience; human-computer interaction; interface; software; real time tactics; rtt; real time strategy; rts; massverse; game; web game; b5game; html; javascript; html5; web application; user interface design; user interface testing; a-b testing; hallway usability test; web analysis; communication channels; user interface analogy to real world; drag & drop; gamification; user focus on user interface; web user interface; web components; design patterns; web wireframes; game area; controlling games

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Hlaváč, M. (2020). Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/55162

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):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Thesis, Brno University of Technology. Accessed January 18, 2021. http://hdl.handle.net/11012/55162.

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

MLA Handbook (7^th Edition):

Hlaváč, Martin. “Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games.” 2020. Web. 18 Jan 2021.

Vancouver:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Internet] [Thesis]. Brno University of Technology; 2020. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/11012/55162.

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

Council of Science Editors:

Hlaváč M. Uživatelská rozhraní pro webové hry: User Interface for Web-Based Games. [Thesis]. Brno University of Technology; 2020. Available from: http://hdl.handle.net/11012/55162

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

Delft University of Technology

6. Kinderman, Hendrik Wisse (author). The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds.

Degree: 2017, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:b5eaa808-6067-46a5-8d45-0e14d18ceeef

► This research project aims at obtaining a better understanding of vertically translating the wing and the related wing-body interference effects on the drag and sonic… (more)

▼ This research project aims at obtaining a better understanding of vertically translating the wing and the related wing-body interference effects on the drag and sonic boom. Computational Fluid Dynamics (CFD) analysis using the Euler equations has been used to evaluate an airplane with different vertical wing placements at a lift coefficient of 0.15 at a Mach-number of 1.6 and also in zero-lift conditions. Pressure distributions, drag forces and pressure signatures have been calculated in order to assess the performance in terms of wave drag and sonic booms. These results have been analysed to find out why certain effects are happening for these configurations. The low wing configuration has the highest lift-to-drag ratio due to interference on the upper wing surface close to the fuselage. The lift-to-drag ratio for CL = 0.15 is found to be 4.79% higher compared to the worst performing configuration, the high wing configuration. Due to the local geometry of the low wing configuration it is possible to cre- ate additional suction on the upper wing surface, which positively affects the performance. Pressure signatures are extracted at 1 body-length distance (70푚) from the aircraft for several azimuth angles. These distributions show that the low wing configuration also has the lowest impulse and maximum overpressure. The higher wing configurations show an extra peak in overpressure emanating from the trailing end of the wing, which is created due to interference effects. Below the wing surface there is a large volume of the fuselage, while it is absent for the low wing configuration. Therefore the higher wing configurations show an extra peak in the pressure signature. Next to this discovery, an analysis is presented to relate the geometry of the configurations to the wave drag by assessing the cross-sectional area distribution using different intersection methods. These methods are compared with other methods found in the literature. Two methods which use a single Mach-cone have been analysed, as well as a method incorporating a forward and a backward pointed Mach-cone. One method translates a Mach-cone vertically to align the vertex of the Mach-cone with the centroid of the intersection with the aircraft. This gives an x,z-position which can be used to adjust the area distribution. The drag for the methods using a single Mach-cone was overestimated by a factor of 2, but after multiplying these results by a factor of / the results for the heigh-weighted Mach-cone method approached the wave drag results from CFD within 5%. The double Mach-cone method showed an even better agreement with less variation, while no multiplication factor was applied. A further analysis has taken place to find out why some methods that incorporate a single Mach- cone to evaluate the cross-sectional area to calculate the wave drag, overestimate the drag by a factor of 2. It is found that these methods do not overestimate the drag for a simple shape, such as a Sears- Haack body. The methods simply overestimate the cross-sectional area,… Advisors/Committee Members: Schrijer, Ferdinand (mentor), Delft University of Technology (degree granting institution).

Subjects/Keywords: sonic boom; vertical wing placement; wave drag; drag; supersonic; pressure signature; lift; zero-lift; area ruling; area rule; Mach; cone

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kinderman, H. W. (. (2017). The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:b5eaa808-6067-46a5-8d45-0e14d18ceeef

Chicago Manual of Style (16^th Edition):

Kinderman, Hendrik Wisse (author). “The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds.” 2017. Masters Thesis, Delft University of Technology. Accessed January 18, 2021. http://resolver.tudelft.nl/uuid:b5eaa808-6067-46a5-8d45-0e14d18ceeef.

MLA Handbook (7^th Edition):

Kinderman, Hendrik Wisse (author). “The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds.” 2017. Web. 18 Jan 2021.

Vancouver:

Kinderman HW(. The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds. [Internet] [Masters thesis]. Delft University of Technology; 2017. [cited 2021 Jan 18]. Available from: http://resolver.tudelft.nl/uuid:b5eaa808-6067-46a5-8d45-0e14d18ceeef.

Council of Science Editors:

Kinderman HW(. The impact of vertical wing placement on the wave drag and sonic-boom performance at supersonic speeds. [Masters Thesis]. Delft University of Technology; 2017. Available from: http://resolver.tudelft.nl/uuid:b5eaa808-6067-46a5-8d45-0e14d18ceeef

Delft University of Technology

7. Kamp, I.A. (author). Assessing the dynamic stability of a floating tidal energy platform during ballast operations.

Degree: 2015, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:e56db4c0-7c31-459d-9583-ccae162efb0e

►

A method is developed to assess the dynamic stability of a floating tidal energy platform during ballast operations. This method is applied to a tidal… (more)

Subjects/Keywords: renewables; mooring lines; lift force; drag force; changing waterline area; changing mass; 6 DOF; large amplitude rotations; MATLAB; Bluewater

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Kamp, I. A. (. (2015). Assessing the dynamic stability of a floating tidal energy platform during ballast operations. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e56db4c0-7c31-459d-9583-ccae162efb0e

Chicago Manual of Style (16^th Edition):

Kamp, I A (author). “Assessing the dynamic stability of a floating tidal energy platform during ballast operations.” 2015. Masters Thesis, Delft University of Technology. Accessed January 18, 2021. http://resolver.tudelft.nl/uuid:e56db4c0-7c31-459d-9583-ccae162efb0e.

MLA Handbook (7^th Edition):

Kamp, I A (author). “Assessing the dynamic stability of a floating tidal energy platform during ballast operations.” 2015. Web. 18 Jan 2021.

Vancouver:

Kamp IA(. Assessing the dynamic stability of a floating tidal energy platform during ballast operations. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Jan 18]. Available from: http://resolver.tudelft.nl/uuid:e56db4c0-7c31-459d-9583-ccae162efb0e.

Council of Science Editors:

Kamp IA(. Assessing the dynamic stability of a floating tidal energy platform during ballast operations. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:e56db4c0-7c31-459d-9583-ccae162efb0e

University of Gothenburg / Göteborgs Universitet

8. Lord, Hans. Morphological antipredator adaptations in water fleas.

Degree: 2009, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/21030

► Some Bosmina and Daphnia species have the ability to develop extreme morphological antipredator defences, such as long antennules, high carapaces and helmets. The relative sizes… (more)

▼ Some Bosmina and Daphnia species have the ability to develop extreme morphological antipredator defences, such as long antennules, high carapaces and helmets. The relative sizes of these plastic traits may differ substantially between populations, and also between individuals within a population, between sexes and during ontogeny. In this thesis I examine how abiotic factors (trophic levels and temperature) and biotic factors (fish and invertebrate predators) affect the size and shape of these traits. In the first two studies, calculations based on experimental results using physical morphological models sinking in glycerine, were used to estimate body drag and energy consumption in Bosmina. Eubosmina longispina, with a low carapace and short antennules, and Eubosmina coregoni gibbera, with a very high carapace and long antennules, were examined. At 5○C, E. c. gibbera had 32-45 % higher body drag than E. longispina. At 20○C the difference was 20-45 %. A model of swimming predicted that, all else being equal, this difference should result in 18-20 % (at 5○C) or 14-16 % (at 20○C) lower swimming speed for E. c. gibbera than for E. longispina. This indicates substantial hydrodynamic costs of the morphological antipredator defences, particularly in low temperatures. The morphological antipredator defences in E. c. gibbera are larger and more variable in females than in males. Male models had lower body drag than models of asexual and sexual females, suggesting that males can swim 14-28 % faster with the same energy consumption. High speed video documentation of swimming E. c. gibbera showed that males advanced 55-73 % further than females in each swimming stroke. Hydrodynamic body drag may therefore have significant implications for swimming and evolution of sexual dimorphism in water fleas. Males may lack the defensive, but hydrodynamically expensive, high carapace of female E. c. gibbera probably because competition over mates favours low body drag. The morphology and size of heads and trunks in Daphnia cristata individuals were studied in twenty lakes in the same drainage basin. The lakes showed a variation in lake total phosphorus and in densities of invertebrate predators and fish. In the end of the summer D. cristata had varying shape and size of their heads. Our results indicate that D. cristata, in nutrient rich lakes, show adaptive morphological defences against both visually hunting and size limited predators. Female D. cristata head shape, in the examined lakes, varied from small and rounded to large and curved. A significant positive correlation between lake total phosphorus and the allometric head coefficients was found, suggesting that the most extremely shaped heads are found in nutrient-rich lakes.

Subjects/Keywords: Body drag; Daphnia cristata; Reynolds number; viscosity; zooplankton; Bosmina; swimming velocity; cyclomorphosis; sexual dimorphism; head area; helmet angle; trophic condition; allometry; invertebrate predator; fish

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Lord, H. (2009). Morphological antipredator adaptations in water fleas. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/21030

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):

Lord, Hans. “Morphological antipredator adaptations in water fleas.” 2009. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed January 18, 2021. http://hdl.handle.net/2077/21030.

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

MLA Handbook (7^th Edition):

Lord, Hans. “Morphological antipredator adaptations in water fleas.” 2009. Web. 18 Jan 2021.

Vancouver:

Lord H. Morphological antipredator adaptations in water fleas. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. [cited 2021 Jan 18]. Available from: http://hdl.handle.net/2077/21030.

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

Council of Science Editors:

Lord H. Morphological antipredator adaptations in water fleas. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. Available from: http://hdl.handle.net/2077/21030

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

9. Baki, Cem, Mr. COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS.

Degree: MS, Mechanical and Aerospace Engineering, 2019, West Virginia University

URL: https://doi.org/10.33915/etd.3759 ; https://researchrepository.wvu.edu/etd/3759

► Currently in US, more than 26 percent of the total GHG emissions comes from transportation and mostly from heavy duty vehicles. Similarly, the European… (more)

▼ Currently in US, more than 26 percent of the total GHG emissions comes from transportation and mostly from heavy duty vehicles. Similarly, the European Council stated that 25 percent of the emissions comes from heavy duty transportation and they expect it to be further increased in the future. However, with the new coming regulations US EPA and European Council aiming to reduce the emissions by 80 percent in US and 60 percent in EU. In order to keep track and control the emissions, both authorities published new regulations and testing methods for certifying the new vehicles. Aerodynamic testing is one of the most important part of certification since, aerodynamic drag is a major contributor of total road load acting on a vehicle which is highly related with emissions of a vehicle. Besides, simulation tools for certification such as “Vehicle Energy Consumption Calculation Tool (VECTO)” and “Greenhouse Gas Emission Model (GEM)” needs drag area ( ) as an input. Moreover, it is essential to determine the drag area correctly, therefore, emission of a vehicle, to be able to estimate the amount of total emissions from heavy duty vehicles. Two different regulatory testing methods were published by US EPA and European Council to determine the drag area ( ) for certification of heavy duty vehicles. While US regulations requires “coast-down (CD)” test, EU regulations requires “constant speed (CST)” test. The objective of this study is to compare these two different regulatory approaches with their different assumptions. In order to be able to make a comparison of these two testing methods, CD and CST performed with same tractor and trailer combination, which is a Class 8 truck for US market, in same conditions. Results yielded up to 9 percent difference between two methods. Possible cause of this difference can be listed as, the different assumptions of each testing method such as speed dependency of losses, different approaches for tire rolling resistance and some neglected or unaccounted loses. These possible reasons were also investigated individually in this study. Advisors/Committee Members: Arvind Thiruvengadam, Marc C. Besch, Marc C. Besch.

Subjects/Keywords: Coast-down; fuel consumption; constant speed test; chassis dynamometer; drag area; drag coefficient; tire rolling resistance; Navigation, Guidance, Control, and Dynamics; Other Mechanical Engineering

…31 4.1. DRAG AREA RESULTS… …32 TABLE 4-4: DRAG AREA COMPARISON OF CONSTANT SPEED AND COAST DOWN METHODS… …35 TABLE 4-6: DRAG AREA RESULTS WITHOUT TRR SPEED DEPENDENCY… …the cross-sectional area of the vehicle. As it can be seen at equation 2.2, aerodynamic drag… …area of the vehicle. Drag coefficient is a dimensionless quantity which is used to model all…

12 more images…

Record Details Similar Records Cite « Share

❌

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

APA (6^th Edition):

Baki, Cem, M. (2019). COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS. (Thesis). West Virginia University. Retrieved from https://doi.org/10.33915/etd.3759 ; https://researchrepository.wvu.edu/etd/3759

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):

Baki, Cem, Mr. “COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS.” 2019. Thesis, West Virginia University. Accessed January 18, 2021. https://doi.org/10.33915/etd.3759 ; https://researchrepository.wvu.edu/etd/3759.

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

MLA Handbook (7^th Edition):

Baki, Cem, Mr. “COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS.” 2019. Web. 18 Jan 2021.

Vancouver:

Baki, Cem M. COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS. [Internet] [Thesis]. West Virginia University; 2019. [cited 2021 Jan 18]. Available from: https://doi.org/10.33915/etd.3759 ; https://researchrepository.wvu.edu/etd/3759.

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

Council of Science Editors:

Baki, Cem M. COMPARISON OF DRAG AREA ESTIMATION USING NATURAL COAST DOWN AND CONSTANT SPEED TEST METHODS. [Thesis]. West Virginia University; 2019. Available from: https://doi.org/10.33915/etd.3759 ; https://researchrepository.wvu.edu/etd/3759

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

		in
And / Or
		in
And / Or
		in
And / Or
		in

Open Access Theses and Dissertations