计算物理 ›› 2002, Vol. 19 ›› Issue (6): 471-475.

• 论文 •    下一篇

一种新的简化气动BGK格式

李启兵, 符松   

  1. 清华大学工程力学系, 北京 100084
  • 收稿日期:2001-05-01 修回日期:2001-10-01 出版日期:2002-11-25 发布日期:2002-11-25
  • 作者简介:李启兵(1973-),男,四川大竹,博士生,从事湍流及其工程应用方面的研究.

A NEW SIMPLIFIED GAS-KINETIC BGK SCHEME

LI Qi-bing, FU Song   

  1. Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China
  • Received:2001-05-01 Revised:2001-10-01 Online:2002-11-25 Published:2002-11-25

摘要: 介绍了气动BGK格式的最新发展,在此基础上对原格式进行了适当简化.数值验证表明简化后的格式不但保留了原格式的强健性和自动满足熵条件等优点,而且算法更加简明,计算量更小.

关键词: 可压缩流动, 简化BGK格式, Prandtl数修正

Abstract: A newly developed gas-kinetic BGK scheme is further simplified. Numerical tests show that the new simplification not only keeps the advantages of the old scheme, such as its robustness and automatic satisfaction of the entropy condition but also makes the scheme simpler and more efficient.

Key words: compressible flow, BGK scheme, Prandtl number revision

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