摘要
本文首先对标量双曲型守恒律构造了一类新的二阶隐式ＴＶＤ差分格式，再利用Ｒｏｅ方法和隐式近似因子分解法推广格式到一维、二维守恒率方程组。为减少计算工作量，推导了二维Ｅｕｌｅｒ方程组隐格式的对角形式。最后，针对江南－Ⅱ并行机设计了适合于多处理机结构特征的并行计算程序，计算翼型的跨声速流场，结果令人满意。
In this paper, we construct a class of implicit two-order TVD scheme and make it linearized. We apply this scheme in the numerical calculation of two-dimensional Euler equations on the basis of AF method. In order to accelerate the conyergence rate, diagonalization has been used, and, for Jiangnan-Ⅱ parallel computer, a parallel scheme is worked out to make full use of the structural characteristic of JiangnanⅡ multi-processor and bring it into full play. The numerical results show that the new method has the advantage of good convergence rate and high resolution.
出处
《空气动力学学报》
CSCD
北大核心
1996年第2期193-199,共7页
Acta Aerodynamica Sinica
基金
国家航空基金
