Lip Separate Flow Blowing and Analysis of Coherence of Inlet

[+] Author and Article Information
Z. W. He, S. Y. Zhang

Department of Aeroengine Design, Nanjing Aeronautical Institute, Nanjing, People’s Republic of China

J. Eng. Gas Turbines Power 108(3), 562-565 (Jul 01, 1986) (4 pages) doi:10.1115/1.3239947 History: Received May 31, 1985; Online October 15, 2009


It is found experimentally that blowing at the lip separation of an inlet obviously reduces the turbulence at the inlet exit, and apparently reduces the intensity of pressure fluctuations caused by the shock-boundary layer interaction downstream of the throat. The coherence between pressure in the interaction region and total pressure at the exit is also reduced. The coherence between the pressure in the lip separation region and total pressure at the exit is 0.32. If, in addition, there is a stronger shock downstream of the throat, the abovementioned coherence is reduced to 0.06.

Copyright © 1986 by ASME
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