摘要
介绍了半离散守恒型Ｅｕｌｅｒ方程及其相关的有限体积方法的几何公式，给出了一般坐标情况下的Ｒｏｅ差分分裂方法，在Ｒｏｅ方法基础上建立了高精度ＴＶＤ格式．分别用Ｒｏｅ方法和ＴＶＤ格式结合Ｒｕｎｇｅ－Ｋｕｔａ方法计算了半球柱体绕流和三维翼绕流，并给出了结果．其中包括少见的来流马赫数Ｍａ∞＝１．０的半球柱体积跨声速绕流结果．
The conservation form of the semidiscrete Euler equation and relative geometric formula for finite volume method,then Roe difference split method in general coordinates,are given.A highaccuracy TVD scheme has been developed on the basis of Roe method.At last 3d transonic flows about a hemisphere cylinder,including the seldom case of Ma ∞=1.0,and about a wing are calculated with Roe method and the TVD scheme combined with Runge Kutta method.
出处
《北京理工大学学报》
EI
CAS
CSCD
1997年第4期528-532,共5页
Transactions of Beijing Institute of Technology
