• 제목/요약/키워드: Linearized Perturbed Compressible Eqs.

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저마하수 난류 끝단 소음 예측 (PREDICTION OF TURBULENCE TRAILING-EDGE NOISE AT LOW MACH NUMBERS)

  • 장강욱;고성룡;서정희;문영준
    • 한국전산유체공학회:학술대회논문집
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    • 한국전산유체공학회 2005년도 추계 학술대회논문집
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    • pp.249-253
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    • 2005
  • The turbulence noise generated from blunt trailing-edge is numerically predicted by using the hydrodynamic/acoustic splitting method at the Reynolds number based on thickness of flat plate, $Re_h=1000$, and the freestream Mach number $M_o=0.2$. The turbulent flow field is simulated by incompressible large-eddy simulation and the acoustic field is predicted efficiently with the linearized perturbed compressible equations (LPCE) recently proposed by the authors. The turbulent flow characteristics are validated with the results of the previous experimental study and direct numerical simulation. The acoustic properties predicted from LPCE are compared with the solutions of analytical formulations.

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