SIMULATION OF RAYLEIGH-TAYLOR INSTABILITY BY THE LATTICE BOLTZMANN MODEL | Zendy

NIE XIAO-BO | Zendy; ZHANG ZHONG-ZHEN | Zendy; FU Hong-yuan | Zendy; Longjun Shen | Zendy; Wang Ji-hai | Zendy

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SIMULATION OF RAYLEIGH-TAYLOR INSTABILITY BY THE LATTICE BOLTZMANN MODEL

Author(s) -

NIE XIAO-BO,

ZHANG ZHONG-ZHEN,

FU Hong-yuan,

Longjun Shen,

Wang Ji-hai

Publication year - 1997

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.46.1508

Subject(s) - rayleigh–taylor instability , lattice boltzmann methods , instability , physics , rayleigh scattering , nonlinear system , statistical physics , mechanics , hpp model , taylor series , classical mechanics , mathematical analysis , mathematics , quantum mechanics , reynolds number , turbulence

We have developed a lattice-Boltzmann model from previous models for multiphase fluid flows to simulate Rayleigh-Taylor instability.A force has been introduced and a 9-velocity square lattice is used.The conservation equation of total mass and momentum can be derived using Chapman-Enskog multiscale expansions.Using this model we have obtained the linear growth and nonlinear growth of bubbles and the mushrooms produced by Rayleigh-Taylor instability.

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