三维高超声速无粘定常绕流的数值模拟  

THE NUMERICAL SIMULATION FOR SUPERSONIC INVISCID STEADY FLOW PAST THREE-DIMENSIONAL BODY

作　　者：陈让福 

机构地区：[1]北京大学数学系,北京100871

出　　处：《计算物理》1993年第3期309-317,共9页Chinese Journal of Computational Physics

基　　金：航天部十四所;国家自然科学基金

摘　　要：本文采用一种简单有效的通量分裂结合一种二阶TVD格式的数值通量的方法,提出一种隐式的迎风有限体积格式,并利用这种格式,从气体动力学非定常Euler方程组出发,数值模拟了三维不对称物体的高超声速无粘定常绕流。数值结果表明此格式具有分辨率较高和收敛速度较快的优点。An implicit upwind finite volume scheme wihch combines a kind of very simple flux splitting with a modified numerical flux method of second order accurate TVD scheme is presented in this paper using this method, we performed numerical simulation for the supersonic inviscid steady flow past an asymmetric three-dimensional body based on unsteady gasdynamics Euler's equations. The numerical results show this method has high resolution for discontinuity and is time-saving.

关 键 词：高超音速流动 定常流动 数值模拟 

分 类 号：O354.4[理学—流体力学]