The following information was submitted:
Transactions: WSEAS TRANSACTIONS ON FLUID MECHANICS
Transactions ID Number: 28-352
Full Name: Manan Desai
Position: Researcher
Age: ON
Sex: Male
Address: Mechanical Engineering Department, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat
Country: INDIA
Tel: 9824024881
Tel prefix: 0091
Fax:
E-mail address: madrene23@gmail.com
Other E-mails: scorpie_man@yahoo,co,in
Title of the Paper: Experimental and Computational Aerodynamic Investigations of a Car
Authors as they appear in the Paper: Manan Desai, Salim Channiwala, Hemant Nagarsheth
Email addresses of all the authors: madrene23@gmail.com, sac@med.svnit.ac.in, hjn@med.svnit.ac.in
Number of paper pages: 10
Abstract: In the recent times, CFD simulations [1], with the advent of computer architectures with superfast processing capabilities are rapidly emerging as an attractive alternative to conventional wind tunnel tests which are either too restrictive or expensive, for aerodynamic styling of a car. The paper describes comparative assessment of two distinct experimental strategies of aerodynamic predictions by conventional wind tunnel approach and its subsequent validation with advanced computational procedures, carried out as a part of design process of a small hybrid car proposed to be named as ADRENe. The experimental investigations were performed on an open circuit suction type wind tunnel having a 30cm x 30cm x 100cm test section, on a geometrically similar, reduced scale (1:15) clay model, while the three dimensional computational analysis was carried out using Gambit as the preprocessing software and Fluent as the solver and post processor. A good agreement between per!
formance values obtained independently by two experimental methods, suggests their reliability and suitability for further experimentation purposes. The comparison with computational approach shows that the computed drag forces and pressure distributions agree well with the experimental values over the entire range of air velocities, however, the agreement with the data for drag coefficient varies, which appears to suggest a higher degree of dependency on the grid quality and elements selection.
Keywords: Car design, Aerodynamics, Wind tunnels, CFD
EXTENSION of the file: .pdf
Special (Invited) Session: Computational Validation of Experimental Aerodynamic Predictions of a Car
Organizer of the Session: 595-411
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