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Volume 34 Issue 1
Jan 2020
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Chinese Journal of High Pressure Physics  > 2020  >  34(1): 012301.
WANG Ya, JIANG Lingjie, DENG Xiaolong. Numerical Study of the Interaction between High-Speed Gas and Elliptical Column Cloud[J]. Chinese Journal of High Pressure Physics, 2020, 34(1): 012301. doi: 10.11858/gywlxb.20190748
Citation: WANG Ya, JIANG Lingjie, DENG Xiaolong. Numerical Study of the Interaction between High-Speed Gas and Elliptical Column Cloud[J]. Chinese Journal of High Pressure Physics, 2020, 34(1): 012301. doi: 10.11858/gywlxb.20190748
shu

Numerical Study of the Interaction between High-Speed Gas and Elliptical Column Cloud

doi: 10.11858/gywlxb.20190748
  • 1.

    Beijing Computational Science Research Center, Beijing 100193, China

  • 2.

    University of Virginia, Charlottesville 22904, VA, USA

  • Received Date: 25 Mar 2019
  • Rev Recd Date: 07 May 2019
    Abstract
  • High-speed particle-laden flow has important applications in astronomy, natural disasters, industrial safety, medical industry, and national defense. In this work, a direct numerical simulation method based on the stratified flow model is used to study the interaction between a planar shock wave and an elliptical column cloud. The influence of the aspect ratio and the tilt angle, the distributions of the flow velocity, RMS velocities along x axis, kinetic energy, internal energy, and turbulent kinetic energy are analyzed; energy values in the upstream region, the elliptical column cloud region and the downstream region of the computational domain are quantitatively analyzed. The 1-D volume-average model is improved for elliptical columns. Based on this model, the appropriate artificial effective drag coefficients are decided by fitting the positions of the reflected shock and the transmitted shock from the direct numerical simulation results, and the distribution of the optimal artificial effective drag coefficients is also discussed.

     

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