Drag reduction by pulsed jets on strongly unstructured wake: towards the square back control Online publication date: Fri, 04-Mar-2011
by E. Bideaux, P. Bobillier, E. Fournier, P. Gillieron, M. El Hajem, J.Y. Champagne, P. Gilotte, A. Kourta
International Journal of Aerodynamics (IJAD), Vol. 1, No. 3/4, 2011
Abstract: Experimental studies have been performed in a wind tunnel in order to control the flow separation on rear window of a generic vehicle shape (the Ahmed body with a scale of 0.7 and a slope angle of 35 degrees). The rear part of the geometry has been modified by replacing the sharp edge between roof and rear window by smooth curved surfaces. This model is equipped at the end of the roof with a strip of pulsed jets in order to control the flow with a velocity of 30 m.s−1. A 20% drag reduction has been obtained with a pulsed frequency at 500 Hz and a momentum coefficient Cµ = 2.75 10−3. This result confirms the interest in using pulsed jets in order to reduce aerodynamic drag and pollutant emission.
Online publication date: Fri, 04-Mar-2011
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Aerodynamics (IJAD):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email firstname.lastname@example.org