摘要
本文根据来流马赫数Ｍ∞选取坐标变换函数，将Ｍ∞→１时的低超声速回球绕流前体流场变换到矩形的计算区域，忽略粘性影响，采用时间相关法，用ＴＶＤ有限差分格式求Ｅｕｌｅｒ方程的定常解，得到了Ｍ∞＝１．０５、１．０１和１．００５的流场分布。
In this paper, a coordinate transformation was constructed according to Moo to convert the forward flow field about a sphere'into a rectangler area in the computational plane. Computation has been conducted for the inviscid flow field by solving Euler equations with time-dependent method and total variation diminishing(TVD) finite difference schemes. Flow field for M∞=1.05, 1. 01 and 1.005 have been obtained and locational of detached shock wave compare well with those obtained in ballistic facilities.
出处
《空气动力学学报》
CSCD
北大核心
1996年第1期104-109,共6页
Acta Aerodynamica Sinica
关键词
圆球
低超声速
TVD格式
欧拉方程
sphere
low supersonic flow
Euler equations
TVDscheme
