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Title: The aerodynamic drag of a compact SUV as measured on-road and in the wind tunnel
Authors: Howell, Jeff
Sherwin, Chris
Passmore, Martin A.
Le Good, G.M.
Issue Date: 2002
Publisher: SAE International
Citation: HOWELL, J. ... et al., 2002. The aerodynamic drag of a compact SUV as measured on-road and in the wind tunnel. SAE Transactions. Journal of Passenger Cars - Mechanical Systems, SAE Paper No. 2002-01-0529, 2002, pp. 583-590.
Abstract: Growing concerns about the environmental impact of road vehicles will lead to a reduction in the aerodynamic drag for all passenger cars. This includes Sport Utility Vehicles (SUVs) and light trucks which have relatively high drag coefficients and large frontal area. The wind tunnel remains the tool of choice for the vehicle aerodynamicist, but it is important that the benefits obtained in the wind tunnel reflect improvements to the vehicle on the road. Coastdown measurements obtained using a Land Rover Freelander, in various configurations, have been made to determine aerodynamic drag and these have been compared with wind tunnel data for the same vehicle. Repeatability of the coastdown data, the effects of drag variation near to zero yaw and asymmetry in the drag-yaw data on the results from coastdown testing are assessed. Alternative blockage corrections for the wind tunnel measurements are examined. A reasonable correlation between wind tunnel and on-road aerodynamic drag data is established for the configurations tested.
Description: Copyright © 2002 SAE International. This paper is posted on this site with permission from SAE International, and is for viewing only. Further distribution and use of this paper is not permitted without permission from SAE. This paper was part of the SAE 2002 World Congress, Detroit, Michigan, March 4th-7th 2002.
Version: Published
DOI: 10.4271/2002-01-0529
URI: https://dspace.lboro.ac.uk/2134/6709
Publisher Link: http://dx.doi.org/10.4271/2002-01-0529
ISSN: 0148-7191
Appears in Collections:Published Articles (Aeronautical and Automotive Engineering)

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