Aerodynamic Drag Reduction of Ahmed Model Using Synthetic Jet Array

Paper #:
  • 2013-01-0095

Published:
  • 2013-03-25
DOI:
  • 10.4271/2013-01-0095
Citation:
Park, H., Cho, J., Lee, J., Lee, D. et al., "Aerodynamic Drag Reduction of Ahmed Model Using Synthetic Jet Array," SAE Int. J. Passeng. Cars - Mech. Syst. 6(1):1-6, 2013, https://doi.org/10.4271/2013-01-0095.
Pages:
6
Abstract:
As speed of ground vehicle increases, there are increased concerns on the aerodynamic drag reduction of ground vehicle. Recently, synthetic jet is emerging as a promising active flow control technology for aerodynamic drag reduction. In this paper, we performed an experimental parametric study on synthetic jet for aerodynamic drag reduction of Ahmed model. Synthetic jet array is constructed by twelve synthetic jet actuators, and installed on two kinds of Ahmed models, of which slant angles are 25° and 35°. The jets are emanated between the roof and the rear slant surface. Jet angle, momentum coefficient, and driving frequency are changed to assess the effect of synthetic jet array on aerodynamic drag. To quantify the effect of synthetic jet, the aerodynamic drag and rear surface pressure are measured and analyzed. From the result, the effect of synthetic jet actuation on aerodynamic drag differs according to the slant angle of the body. The aerodynamic drag is reduced for 25° slanted body, but increased for 35° model. And jet angle, momentum coefficient, and driving frequency affect the quantity of change in aerodynamic drag.
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

Article
2017-04-18
Technical Paper / Journal Article
2010-10-19
Training / Education
2013-04-09
Training / Education
2017-06-15
Technical Paper / Journal Article
2010-09-28
Training / Education
2018-02-05