Numerical Simulation of a Three-Dimensional Unsteady Supersonic Cavity Flow

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  • Ono Daisuke
    Department of Energy and Environmental Engineering, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Yonamine Makiko
    Department of Energy and Environmental Engineering, Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Handa Taro
    Department of Energy and Environmental Engineering, Faculty of Engineering Sciences
  • Aoki Toshiyuki
    Department of Energy and Environmental Engineering, Faculty of Engineering Sciences
  • Masuda Mitsuharu
    Department of Energy and Environmental Engineering, Faculty of Engineering Sciences

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Other Title
  • 数値シミュレーションによる超音速キャビティ流れの三次元非定常解析
  • スウチ シミュレーション ニ ヨル チョウオンソク キャビティ ナガレ ノ 3ジゲン ヒテイジョウ カイセキ

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Abstract

Three-dimensional unsteady behaviors of a supersonic cavity flow are investigated by the numerical simulation based on the Navier-Stokes equations. The dominant frequencies of the pressure fluctuations calculated by the simulation agree very well with those measured in the previous experiment. In order to extract the fluctuation components of a dominant frequency，the resulting time-dependent solutions are phase-averaged．As a result，the three-dimensional unsteady behaviors like wave propagation and vortex shedding are clarified.

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