Table of Contents
Journal of Computational Engineering
Volume 2014, Article ID 785294, 17 pages
Research Article

Numerical Study of the Generic Sports Utility Vehicle Design with a Drag Reduction Add-On Device

Department of Mechanical Engineering, Delhi Technological University, Bawana Road, Shahbad Daulatpur, Delhi 110042, India

Received 28 July 2014; Revised 21 October 2014; Accepted 11 November 2014; Published 17 December 2014

Academic Editor: Fu-Yun Zhao

Copyright © 2014 Shubham Singh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


CFD simulations using ANSYS FLUENT 6.3.26 have been performed on a generic SUV design and the settings are validated using the experimental results investigated by Khalighi. Moreover, an add-on inspired by the concept presented by Englar at GTRI for drag reduction has been designed and added to the generic SUV design. CFD results of add-on model and the basic SUV model have been compared for a number of aerodynamic parameters. Also drag coefficient, drag force, mean surface pressure, mean velocities, and Cp values at different locations in the wake have been compared for both models. The main objective of the study is to present a new add-on device which may be used on SUVs for increasing the fuel efficiency of the vehicle. Mean pressure results show an increase in the total base pressure on the SUV after using the device. An overall reduction of 8% in the aerodynamic drag coefficient on the add-on SUV has been investigated analytically in this study.