Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Control of the Unsteadiness of Supersonic Cavity Flows

불안정한 초음속 공동유동의 제어

  • 강민성 (안동대학교 기계공학과 대학원) ;
  • 신춘식 (안동대학교 기계공학과) ;
  • 권준경 (안동대학교 기계공학과) ;
  • 김희동 (안동대학교 기계공학부)
  • Published : 2008.11.05
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Abstract

The subcavity passive control technique is used in present study. Cavity-induced pressure oscillation has been investigated numerically for a supersonic three-dimensional flow over rectangular cavities at Mach number 1.83 at the cavity entrance. Time dependent supersonic turbulent flow over cavity were examined by using the three-dimensional, mass-averaged Navier-Stokes equations based on a finite volume scheme and large eddy simulation. The results showed that the resultant amount of attenuation of cavity-induced pressure oscillations was dependent on the length and thickness of the flat plate.

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