喷管二维跨声速两相湍流流场的数值模拟

NUMERICAL SIMULATION OF TWO DIMENSIONAL TRANSONIC TWO PHASE TURBULENT FLOW IN NOZZLE

采用ＳＩＭＰＬＥ算法，结合分散颗粒轨道（ＰＳＩＣ）模型，在同位网格上实现了喷管中跨声速两相湍流流场的数值模拟。根据Ｒｈｉｅ，Ｃｈｏｗ提出的动量插值概念，以协变物理速度分量作为求解变量，完成跨声速气相流场的数值计算。湍流模式采用ｋ－ε双方程模型，计算结果与提供的实验数据相符合。

Based on a colocated grid arrangement,combined with PSIC model,SIMPLE algorithm was presented for the solution of two dimensional unsteady transonic two phase turbulent flows in nozzles.The principle of momentum interpolation was applied to the covariant physical velocity components, which were chosen as the dependent variables in the simulation of the fluid field. The k ε model was utilized to describe the turbulent flow process