What is it about?

Flow separation in the air-intakes of supersonic aircraft can degrade the flight performance. In this work we investigate using CFD the effects of a passive control device - a slotted vortex generator - on the control of flow-separation in a realistic scaled down intake geometry. Tobe specific, we try to find the best position of the device in the inlet in the presence of the sidewall effects.

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Perspectives

I believe this work throws important light on the optimal use of vortex generators as a flow control device in a realistic setting. It shows that the optimal device spacing determined through studies that use idealized domains with periodic boundary conditions along the span may not be suitable in a real inlet as the width of the inlet and the presence of the boundary layers play an important role.

Santanu Ghosh
Indian Institute of Technology Madras

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This page is a summary of: Flow Control in a Mach 4.0 Inlet by Slotted Wedge-shaped Vortex Generators, June 2015, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2015-2727.
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