Prince, S., Green, R. , Coton, F. and Wang, Y. (2019) The effect of steady and pulsed air jet vortex generator blowing on a aerofoil section model undergoing sinusoidal pitching. Journal of the American Helicopter Society, 64(3), pp. 1-14. (doi: 10.4050/JAHS.64.032004)
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Abstract
Experimental results are reported on the assessment of steady and pulsed air jet vortex generators (AJVGs) for the suppression of dynamic stall on a sinusoidal pitching RAE9645 airfoil model. Tests at Rec of 1 million, at reduced pitching frequencies between 0.01 and 0.10 were performed with and without steady and pulsed AJVG blowing. The effect of jet momentum coefficient (0.0003 < Cμ < 0.0046), jet duty cycle (0.25 < DC < 1) and jet pulsing frequency (0.29 < F+ < 2.93) were investigated. Pulsed air jet blowing with F+ in the range 0.5–1.0 and with a duty cycle in the range 0.4–0.5, was found to be the most effective to achieve full suppression of dynamic stall vortex formation.
Item Type: | Articles |
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Additional Information: | This work was funded under the UK Defence Applied Research Partnership program, by the UK Defence Science & Technology Laboratory, QinetiQ Ltd., AgustaWestland Ltd., and the Technology Strategy Board. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Green, Dr Richard and Coton, Professor Frank and Prince, Dr Simon |
Authors: | Prince, S., Green, R., Coton, F., and Wang, Y. |
College/School: | College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity |
Journal Name: | Journal of the American Helicopter Society |
Publisher: | American Helicopter Society Inc. |
ISSN: | 0002-8711 |
ISSN (Online): | 2161-6027 |
Published Online: | 30 July 2019 |
Copyright Holders: | Copyright © 2019 AHS International |
First Published: | First published in Journal of the American Helicopter Society 64(3) 1-14 |
Publisher Policy: | Reproduced with the permission of the Publisher |
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