弹道学报2017，Vol.29Issue(4)：76-80,85,6.
柔性喷管SRM三维两相内流场数值模拟
Simulation on 3 D Two-phase Inner Flow Field for Flexible-nozzle SRM
摘要
Abstract
According to the problems of complicated multi-phase flow fields of the flexible-nozzle solid rocket motor(SRM),the 3D two-phase numerical model was established based on the method of Euler-Lagrange. The k-ω SST(shear-stress-transport)turbulence model and the particle orbital model(PTM) were used for simulation. The pressure and temperature fields, gas and particle velocity fields, particle deposition concentration and trajectory were analyzed. The SRM internal-flow-field variation-characteristics under the conditions of nozzle without swing and swinging 5° were compared. The results show that the change of average pressure and temperature of the combustion chamber,the velocity at the exit of nozzle is very little,but the velocity of flexible joint is different. The maximum deposition rate of the particles appears on the inner wall of the insulating layer in the SRM rear head. In the case of no swing, the particle deposition rate is less in the flexible joint,and as the nozzle swings increases,the deposition concentration of particle increases obviously.关键词
固体火箭发动机/柔性喷管/点火过程/颗粒轨道模型/两相流Key words
solid rocket motor/flexible nozzle/ignition process/particle trajectory model/two-phase flow分类
航空航天引用本文复制引用
张俊,田中旭,许哲,宋秋红,高天宇,王刚..柔性喷管SRM三维两相内流场数值模拟[J].弹道学报,2017,29(4):76-80,85,6.基金项目
上海市青年教师资助计划(A1-2061-17-000111) （A1-2061-17-000111）
上海海洋大学科研启动基金项目(A2-0203-17-100326 （）
A2-0203-17-100330) （）
