Informatics Publishing Limited

N. Sathish Kumar ¹, K. Kannan ², S. Sendhil Kumar ³

Affiliations
1 PSG College of Technology, Coimbatore-641004, IN
2 Dept. of Production Engineering, PSG College of Technology, Coimbatore-641004, IN
3 Aeronautical Engineering, Karpagam Institute of Technology, Coimbatore-641105, IN

Abstract

It is essential that aerodynamics can be taken in to account during the design of cars as an improved aerodynamics in car would attain higher speeds and more fuel efficiency which leads to less fuel consumption and vehicle stability and reduces shortage of fuel. In this paper the external aerodynamics of a commercial car model was investigated numerically and validated the results experimentally with wind tunnel. The objective of the current work is to check the drag and lift co-efficient of model, as well as pressure distribution of the commercial car model in wind tunnel, second to develop virtual wind tunnel environment and conduct trials. In this paper 1:14 scale down car model is used and by applying reverse engineering concept CAD (Computer Aided Design) data is extracted from the scale down model for Computational Fluid Dynamics (CFD) analysis. ANSA and T-grid is used as pre-processor and Fluent as solver for CFD analysis.

Keywords

CFD, Reverse Engineering, Wind Tunnel Test.

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S. Kannan ¹, S. Sendhil Kumar ¹, M. Chandrasekaran ¹

Affiliations
1 Department of Mechanical Engg., Rajalakshmi Engg. College, Chennai, IN

Abstract

Automobile body is collective assembly of several assembly parts. Function of assemblies is related to one another assembly parts. Assemblies and its actions are derived from the basic mechanical chain mechanisms. These relative motions are most important term to achieve the required function. Precision and accuracy is the sound term of assembly parts for automobile body. Over all efficiency of automobile body function may contributed by even a small element of the assembly parts. Failure of small element in a part may affect function of the body system. Every part of the assembly should meet the basic requirement like strength. There should not be any failure of the product during its entire life time, what reliability engineering talks about. Consideration must be tune to the over all life time function not only at the period of launching. Achieving those strategies can be possible in many ways. Factors to be consider for choosing the right way to meet the requirement which may balance functional constrain and operational conditions. Optimization is term which establishing the balancing of functional constrain and operational condition. This paper deals about the optimization of automobile body part which fails during its function. CAD system made this project simpler to achieve optimized solution for the problem.

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