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A Thermal LBGK Model for Large Density and Temperature Differences

Author

Listed:
  • Jian Huang

    (Physics Department, Drexel University, Philadelphia, PA 19104, USA)

  • Feng Xu

    (Physics Department, Drexel University, Philadelphia, PA 19104, USA)

  • Michel Vallières

    (Physics Department, Drexel University, Philadelphia, PA 19104, USA)

  • Da Hsuan Feng

    (Physics Department, Drexel University, Philadelphia, PA 19104, USA)

  • Yue-Hong Qian

    (Department of Applied Physics, Columbia University, New York, NY 10027, USA)

  • Bruce Fryxell

    (Mail Code 934, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA)

  • Mike R. Strayer

    (Physics Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA)

Abstract

We present a new lattice-Boltzmann method for hydrodynamic simulations, which is capable of handling very large density and temperature gradients. Unlike other LBGK models, the discrete velocities we used center at the local mean flow velocity, and their values vary according to the local temperature. The adiabatic index of the gas can be easily controlled by a parameter.

Suggested Citation

  • Jian Huang & Feng Xu & Michel Vallières & Da Hsuan Feng & Yue-Hong Qian & Bruce Fryxell & Mike R. Strayer, 1997. "A Thermal LBGK Model for Large Density and Temperature Differences," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 8(04), pages 827-841.
    • Handle: RePEc:wsi:ijmpcx:v:08:y:1997:i:04:n:s0129183197000710
    DOI: 10.1142/S0129183197000710
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