Aerodynamic Drag Reduction on a Simple Car-Like Shape with Rear Upper Body Taper

Paper #:
  • 2013-01-0462

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-0462
Citation:
Howell, J., Passmore, M., and Tuplin, S., "Aerodynamic Drag Reduction on a Simple Car-Like Shape with Rear Upper Body Taper," SAE Int. J. Passeng. Cars - Mech. Syst. 6(1):52-60, 2013, doi:10.4271/2013-01-0462.
Pages:
9
Abstract:
Various techniques to reduce the aerodynamic drag of bluff bodies through the mechanism of base pressure recovery have been investigated. These include, for example, boat-tailing, base cavities and base bleed. In this study a simple body representing a car shape is modified to include tapering of the rear upper body on both roof and sides. The effects of taper angle and taper length on drag and lift characteristics are investigated. It is shown that a significant drag reduction can be obtained with moderate taper angles. An unexpected feature is a drag rise at a particular taper length. Pressure data obtained on the rear surfaces and some wake flow visualisation using PIV are presented.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-09-28
Article
2016-08-24
Training / Education
2017-06-15
Article
2016-09-06