计算物理 ›› 1993, Vol. 10 ›› Issue (3): 325-330.

• 论文 • 上一篇    下一篇

超音速粘性绕流的一种新的空间推进数值解法

林明森1, 傅德薰2   

  1. 1. 天津大学力学系, 天津 300072;
    2. 中科院力学所, 北京 100080
  • 收稿日期:1991-12-17 修回日期:1993-02-16 出版日期:1993-09-25 发布日期:1993-09-25

A NEW SPACE MARCHING METHOD FOR SUPERSONIC-VISCOUS FLOW OVER BLUNT-BODY

Lin Mingsen1, Fu Dexun2   

  1. 1. Dept of Mechanics, Tianjin Univ, Tianjin 300072;
    2. Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080
  • Received:1991-12-17 Revised:1993-02-16 Online:1993-09-25 Published:1993-09-25

摘要: 本文提出了一种新的推进式求解方法,用显、隐MacCormack格式对定常超音速绕流进行了分区求解,本方法可用于流过任意形状的超音速身部流动。通过对钝锥超音速绕流的数值模拟,表明了此方法可以避开下游的影响问题,避免了推进法对亚音速区压力梯度的特殊处理。计算的结果与文献[19,20,24]相吻合。

关键词: 抛物化Navier-Stokes方程, 局部迭代, 分区求解, 空间推进技术, 数值模拟

Abstract: A new space marching method is given to compute supersonic flow fields surrounding a Blunt-Body body. The computations have been performed for flow conditions convesponding to an exensive series availabe of experimental surface pressures and heat-transfers.

Key words: PNS equations, local iteration, decomposed domain, spacemarching, numerical simulation