Flow Control of Extreme Pressure Loads Associated with Flow Separation
Publication: Journal of Engineering Mechanics
Volume 142, Issue 2
Abstract
Active flow control is applied at different locations over a surface-mounted prism to reduce extreme pressure coefficient and loads. Different control strategies including blowing, suction, and synthetic jets are evaluated. The full unsteady Navier–Stokes equations are solved to determine the pressure coefficients. The extent of reduction when using these three strategies with different flux injections, slot locations, and angles is determined. These strategies are assessed in two flow regimes corresponding to different Reynolds numbers. It is found that for the case of , a reduction of the peak pressure, by nearly 50% is obtained. For the case of , the best reduction is about 25%.
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Acknowledgments
This work is supported by the National Science Foundation through the Division of Civil, Mechanical, and Manufacturing Innovation under Grant No. 0856588. The authors gratefully acknowledge Dr. I. Akhtar for his assistance with the numerical method.
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Information
Published In
Journal of Engineering Mechanics
Volume 142 • Issue 2 • February 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Jan 19, 2015
Accepted: May 1, 2015
Published online: Jul 3, 2015
Discussion open until: Dec 3, 2015
Published in print: Feb 1, 2016
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