摘要
将Steger-Warming矢通分裂方法和NND格式相结合,构成一种基于Steger-Warming矢通分裂且能自动捕捉激波的差分方法.通过对激波管的数值分析,表明该算法解决了Steger-Warming矢通分裂方法在特征值变号点附近存在数值解振荡的问题,具有良好的计算精度和计算效率.
The NND scheme based on Steger-Warming flux vector splitting is presented, and the flow field of shock wave tube is calculated by the finite difference method. It is shown that the numerical oscillation brought by Steger-Warming flux vector splitting is restrained. The finite difference method has fine precision and efficiency.
出处
《郑州大学学报（理学版）》
CAS
2008年第2期39-41,共3页
Journal of Zhengzhou University:Natural Science Edition
基金
国防科工委科学基金资助项目,编号A2120060004
关键词
矢通分裂
NND差分格式
激波捕捉
flux vector splitting
NND scheme
shock wave capturing
