Active Control of Cavity Shear Layer Oscillation
نویسنده
چکیده
Influence of externally forced initial flow conditions on axisymmetric cavity shear layer were studied. A sinusoidally heated strip upstream of the cavity excited Tollmien-Schlichting waves which, after amplification by the boundary layer, were introduced to the cavity shear layer. By choosing forcing frequencies within the range of shear layer receptivity, it was possible to control frequency and amplitude of the oscillations and consequently control the cavity drag.
منابع مشابه
Response of the Cavity Shear Layer Oscillations to External Forcing
Influence of eKternally forced initial flow conditions on aKisymmetrlc cavity shear layer was studied. A sinusoidally heated strip upstream of the cavity eKcited Tollmlen·Schllchtlng waves that, after amplification by the boundary layer, were introduced to tbe cavity shear layer. It is shown that by selecting a forcing frequency, which satisfies a phase difference criterion between two comers o...
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