摘要
讨论了结构网格和非结构网格在弹箭外流场数值仿真中的特点,提出了弹箭外部绕流数值仿真中选择网格的三点原则。以某火箭弹外部绕流数值仿真为例,对比了采用结构网格和非结构网格进行仿真时的内存占有量、CPU时间以及计算精度,其结果分析对弹箭外部绕流数值仿真中网格的选择具有一定的指导意义。
The paper mainly discussed the characteristic of structured grids and unstructured grids and proposed three principles of grids choice. Take the rocket projectile exterior circumferential flow numerical simulation as the example, compared the memory possessive amount, the CPU time as well as the computation precision when used the structure grids and the non-structure grids. And the analysis results play a guide role in the grid choice of exterior circumferential flow of rocket projectile in numerical simulation.
出处
《弹箭与制导学报》
CSCD
北大核心
2009年第2期191-194,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
外部绕流
结构网格
非结构网格
数值仿真
exterior circumferential flow
structured grids
unstructured grids
numerical simulation
