摘要
为了对亚、跨、超音速及不可压无粘流动进行数值模拟 ,将 L U- SGS方法与预处理方法结合 ,给出了 PL U- SGS方法。方程离散基于有限体积法 ,采用高阶精度 AUSMPW格式。方程求解采用了特征边界条件。通过典型算例的数值试验对比分析 ,表明 PL U- SGS方法可以有效地对亚、跨、超音速及不可压流动进行数值模拟 。
A computational method is developed in order to calculate compressible and incompressible flows by using implicit time marching method. The equations are preconditioned to permit solution of both compressible and incompressible flows. A cell based finite volume discretization is used in conjunction with AUSMPW scheme. Characteristic boundary conditions based on the eigen system of the preconditioned equations are employed. Computational capabilities are demonstrated through computation of a wide variety of problems. Comparison of the calculations with available numerical data shows that the method is accurate, self-adaptive and stable for a wide range of Mach numbers.
出处
《计算力学学报》
EI
CAS
CSCD
北大核心
2001年第4期397-401,共5页
Chinese Journal of Computational Mechanics
