Aerodynamic Study Of Proton Exora Using Computational Fluid Dynamic (CFD) Fluent

Nur Izrin, Mahyon (2010) Aerodynamic Study Of Proton Exora Using Computational Fluid Dynamic (CFD) Fluent. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The study of ground vehicle aerodynamics is quite different from that of aircraft aerodynamics. A vehicle performances and fuel economy plays an important role in the market because these factors will influence the customer’s decision in selecting and purchasing a valued vehicle. These two factors are mainly dominated by the aerodynamic characteristics of the vehicle. Proton Exora is a squareback multi purpose vehicle (MPV); one of our national cars in year 2009, produced by Perusahaan Otomobil Nasional Berhad (Proton). Therefore, the objectives of this project is to concentrate mainly in explanations of the physical principles and on the methods of simulation measurement and experimental testing on aerodynamic characteristics for determining the lift and drag of Proton Exora from its geometry. The simulation studies were conducted by using Computational Fluid Dynamics (CFD) software, FLUENT and the experimental were conducted through the wind tunnel testing by using subsonic wind tunnel. The analysis was concentrated on all the critical region of Proton Exora and the suggestion of improvements were made based on the analyses and results from the simulation and experiment. The aims of the improvement are basically to achieve lower drag and lift coefficient. Therefore, all the modifications made on the vehicle will increase the stability and reduce fuel consumption of Proton Exora.

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