计算物理 ›› 1990, Vol. 7 ›› Issue (4): 472-480.

• 论文 • 上一篇    下一篇

凹型钝头体超音速粘性流场的数值模拟

薛聚奎1, 王汝权2   

  1. 1. 西北师范大学物理系, 兰州市 730070;
    2. 中国科学院计算中心, 北京 100080
  • 收稿日期:1990-04-21 出版日期:1990-12-25 发布日期:1990-12-25

NUMERICAL SIMULATION OF SUPERSONIC VISCOUS FLOW ABOUT INDENTED NOSETIPS

Xue Jukui1, Wang Ruquan2   

  1. 1. Northwestern Normal University;
    2. Computing Centre, Academia Sinica
  • Received:1990-04-21 Online:1990-12-25 Published:1990-12-25

摘要: 本文首先从单个方程出发,根据TVD思想,比较自然地给出了二阶带通量限制器的CSCM[1]差分方法,然后推广到方程组情形。为了验证方法和程序,将球头绕流计算结果同文献[2]作了比较,然后运用此方法模拟了轴对称凹型钝体的粘性超音速分离绕流流场,对一阶与二阶、粘性与无粘性数值结果作了比较。计算网格采用了简单、快速易行的拟正交代数生成方法。

关键词: 凹型钝头体, 超音速粘性流, CSCM-S, 数值模拟

Abstract: Accourding to the thought of TVD, we propose the TVD-type second-order CSCM[1], from a siugle eqution, then extend it to system of equtions. To test the method and computer code, we compare our results for sphere with those of the reference [2]. Using our code, we simulate the supersonic viscous separated flow over indented nosetips. We compare the first-order results with the second-order results, and viscous results with inviscid results. Computational grids are generated by a simpler and faster quasi-orthogonal algebraic generation method.

Key words: indented nosetips, supersonic viscous flow, CSCM-S, numerical simulation