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Fractional Propagation and the Elimination of Staggered Invariants in Lattice-BGK Models

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  • Yue-Hong Qian

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

Abstract

Lattice-based models have been attracting much interest in recent years and have been applied to many complex systems. The derivation of large scale dynamical equations of lattice-gas models as well as lattice-Boltzmann models was based on the belief that only the physically interesting quantities (mass, momentum and energy) are conserved. Staggered invariants in lattice-gas models were found in 1988 and there have been no efficient methods to eliminate these invariants. In this paper, we will first discuss the existence of staggered invariants, then we propose to use fractional propagation as an effective way of suppressing these undesired invariants. Numerical simulations will be used to confirm the theory and to show the improvement of computations.

Suggested Citation

  • Yue-Hong Qian, 1997. "Fractional Propagation and the Elimination of Staggered Invariants in Lattice-BGK Models," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 8(04), pages 753-761.
    • Handle: RePEc:wsi:ijmpcx:v:08:y:1997:i:04:n:s0129183197000643
    DOI: 10.1142/S0129183197000643
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    Cited by:

    1. Oleg Ilyin, 2022. "Low Dissipative Entropic Lattice Boltzmann Method," Mathematics, MDPI, vol. 10(21), pages 1-22, October.

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