CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2018, Vol. 35 ›› Issue (3): 253-261.DOI: 10.19596/j.cnki.1001-246x.7800

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Practices and Advances on Rational Subgrid-Scale Modeling

FANG Le1,2,3, WANG Chuhan1   

  1. 1. Ecole Centrale de Pékin, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    2. Collaborative Innovation Center of Advanced Aero-Engine, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
    3. Laboratoire International Associé, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
  • Received:2017-11-16 Revised:2017-11-16 Online:2018-05-25 Published:2018-05-25

Abstract: Subgrid-scale modeling is spirit of large-eddy simulation. Original intention of rational subgrid-scale modeling is to remove empirical and phenomenological components of modeling process, so that every step in modeling process is physically and mathematically traceable. According to theory of rational subgrid modeling, we developed a series of subgrid models that do not depend on empirical constants and phenomenological models, but their effect in practical problems is still insufficient, which leads to, in recent years, reflection on proper idea of subgrid modeling. This paper reviews existing research and new progress, whose goal is to give a rational and self-consistent theoretical guidance of future large eddy simulation.

Key words: subgrid-scale modeling, large-eddy simulation, rational modeling, Kolmogorov equation, mathematical criterions on compatibility

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