推进技术 ›› 1999, Vol. 20 ›› Issue (2): 37-41.

• • 上一篇    下一篇

喷管二维跨声速两相湍流流场的数值模拟

严红,何洪庆   

  1. 清华大学工程力学系;西北工业大学航天工程学院
  • 发布日期:2021-08-15

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

  1. Coll.of Astronautics, Northwestern Polytechnical Univ.,Xi’an,710072;Coll.of Astronautics, Northwestern Polytechnical Univ.,Xi’an,710072
  • Published:2021-08-15

摘要: 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。

关键词: 喷管气流;二维流;跨音速流;数值仿真

Abstract: 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

Key words: Nozzle flow;Two dimensional flow;Transonic flow;Numerical simulation