计算物理 ›› 2000, Vol. 17 ›› Issue (4): 355-359.

• 论文 • 上一篇    下一篇

有变高度圆柱干扰的平板表面流谱拓扑结构

马汉东, 周伟江   

  1. 北京空气动力研究所, 北京 100074
  • 收稿日期:1999-07-22 修回日期:1999-09-22 出版日期:2000-07-25 发布日期:2000-07-25
  • 作者简介:马汉东(1961~),男,安徽宿县,研究员,博士,从事计算流体动力学方面的研究.

TOPOLOGICAL STRUCTURES OF FLOW PATTERNS ON PLATE SURFACE INDUCED BY VARY HEIGHT CIRCULAR CYLINDERS

MA Han-dong, ZHOU Wei-jiang   

  1. Beijing Institute of Aerodynamics, Beijing 100074, P R China
  • Received:1999-07-22 Revised:1999-09-22 Online:2000-07-25 Published:2000-07-25

摘要: 采用分区方法和Roe三阶流通量差分分裂格式数值求解雷诺平均N-S方程,湍流附加粘性系数由修正的Baldwin-Lomax模型计算,数值模拟了高超声速绕变高度圆柱流动,进而根据拓扑学理论给出了有变高度圆柱干扰的平板表面流谱拓扑结构,并结合对称截面流谱进行了简要的分析与探讨,指出了需要进一步深入研究的问题。

关键词: 圆柱, 湍流, 数值模拟, 拓扑分析

Abstract: The hypersonic flows around circular cylinders mounted flat plate are simulated by Reynolds-averaged Navier-Stokes equations and modified Baldwin-Lomax turbulence model. The zonal method and Roe third-order flux difference splitting scheme are used for the computation. The correspondent topological structures of flow patterns on plate surface are then obtained by topological theory. Some brief discussions are made with emphasizing on problems needed to be further studied.

Key words: circular cylinder, turbulent flow, numerical simulation, topology analysis

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