ACTIVE CONTROL OF COMPRESSIBLE FLOWS ON A CURVED SURFACE 851856
We consider the effect of Localized, time-periodic surface heating and cooling over a curved surface. This is a mechanism for the active control of unstable disturbances by phase cancellation and reinforcement. It is shown that the pressure gradient induced by the curvature significantly enhances the effectiveness of this form of active control. In particular, by appropriate choice of phase, active surface heating can completely stabilize an unstable wave.
LUCIO MAESTRELLO, ALVIN BAYLISS, PARESH PARIKH, ELI TURKEL
NASA Langley Research Center, Hampton. VA, Exxon Corporate Research Science Laboratories Annandate. NJ, Vigyan Research Associates, Inc. Hampton. VA, Tel-Aviv University, Tel-Aviv, Israel & ICASE, NASA Langley Research Center, Hampton, VA
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