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dc.contributor Tuzcu, Ilhan en
dc.contributor.advisor Zhou, Dongmei en
dc.contributor.author Krishnani, Pramod Nari en
dc.date.accessioned 2010-06-09T21:36:04Z en
dc.date.available 2010-06-09T21:36:04Z en
dc.date.issued 2009-11-12 en
dc.date.submitted 2009-12-02 en
dc.identifier.uri http://hdl.handle.net/10211.9/123 en
dc.description Thesis (M.S., Mechanical Engineering) -- California State University, Sacramento, 2009. en
dc.description.abstract In the history of aerodynamic research around the bluff bodies like SUV, trucks and trailers, it has always been observed that their shapes with square base have served as an obstacle improving vehicle fuel economy. When the air passes over the vehicle surface, it makes the air over the surface change its behavior, resulting in a low pressure region and a high pressure region. This pressure difference along with the vortex shedding causes drag thereby increases the fuel consumption. Researchers around the world have tried to reduce the drag of trailers or truck by using external devices like spoilers, vortex strake device (VCD) and under-carriage flow device (UFD). The purpose of this thesis is to check the feasibility of using such external devices for reducing drag on the large size SUV. The generic SUV model created by previous research experiments along with the Ahmed's reference model is considered as a benchmark for validating all the simulation results. Simple external devices like boat tail plate and the foot step are simulated and optimized using commercial software packages like FLUENT, GAMBIT, T-grid and Solidworks. Fifteen different angular combinations of upper and lower boat tail plates are simulated and optimized to get the best angle suitable for drag reduction of Generic SUV model. The second external device commonly known as the foot step is simulated with five configurations by varying the width of the foot step. The foot step bypasses the air around the rear wheel and thereby reduces drag coefficient of the complete SUV model compared to the original SUV model. The optimal sizes of the width favorable for the drag reduction are discussed in this thesis. en
dc.description.sponsorship Mechanical Engineering en
dc.language.iso en_US en
dc.publisher American Society of Mechanical Engineers en
dc.subject Computational Fluid dynamics en
dc.subject CFD en
dc.subject Fluid Dynamics en
dc.subject Aerodynamics en
dc.subject Vehicle Aerodynmics en
dc.subject ASME en
dc.subject SAE en
dc.subject Generic Sport Utility Vehicle en
dc.subject Sport Utility Vehicle en
dc.subject SUV en
dc.subject Generic SUV en
dc.subject Wind Tunnel Testing en
dc.subject Numerical Analysis en
dc.subject Virtual Wind Tunnel Testing en
dc.title CFD study of drag reduction of a generic sport utility vehicle en
dc.type Thesis en

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