带制退器的膛口燃烧流场并行数值模拟  

Numerical Simulation of Muzzle Combustion Flow Field With Brake by Parallel Computation

作　　者：代淑兰[1] 许厚谦[2] 肖忠良[1] 

机构地区：[1]中北大学化工与环境学院,太原030051 [2]南京理工大学动力工程学院,南京210094

出　　处：《弹道学报》2009年第4期84-87,共4页Journal of Ballistics

摘　　要：采用三维非定常化学反应流控制方程组对带制退器的膛口燃烧流场进行了数值模拟,对流项和化学反应源项分别用TVD格式和基元反应模型进行处理,在多台PC机组成的集群并行系统中,基于域分解的思想对带制退器的三维膛口非平衡化学反应流场进行了数值计算.计算结果表明,膛口制退器能削弱膛口流场激波的强度,抑制二次焰的产生.Applying three-dimensional chemical non-equilibrium equations, the combustion flow field of muzzle brake was numerically simulated. The convection term was solved with TVD format, and the chemical reaction was dealt with by elementary reaction model. Based on MPI parallel environment on PC-Cluster system, a parallel arithmetic for the muzzle flow field was discussed. The result shows that the brake device diminishes the intensity of shock wave and restrains secondary muzzle flash spread.

关 键 词：制退器 基元反应 TVD格式 并行计算 

分 类 号：TJ012.2[兵器科学与技术—兵器发射理论与技术]