Hypersonic Incident Shock-Boundary Layer Interaction Control by Wavy Patches
Publication: Journal of Aerospace Engineering
Volume 34, Issue 1
Abstract
Shock-boundary layer interaction (SBLI) at hypersonic inlets can alter the flow pattern and impose adverse effects on engine operation if not controlled. A two-dimensional surface modification in the form of a sinusoidal wavy patch was introduced to a standard wedge-plate model in a hypersonic freestream of Mach 8.5 to test its influence on incident SBLI. Experimental and numerical comparison of flow visualization and wall pressure readings on the model with and without the wavy patch indicated a mitigating effect of the wavy patch on incident SBLI. The controlled SBLI induced significantly smaller flow separation compared with an uncontrolled case. Because of the minimally intrusive design of the wavy patch, the flow distortion/instability was notably less than that observed in the uncontrolled case.
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Data Availability Statement
ANSYS Fluent used during the study for numerical simulations is proprietary in nature, which required a paid license to use the code. This study utilized the license shared by IIT Bombay.
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© 2020 American Society of Civil Engineers.
History
Received: Jan 27, 2020
Accepted: Jul 14, 2020
Published online: Sep 24, 2020
Published in print: Jan 1, 2021
Discussion open until: Feb 24, 2021
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