含缺陷固体发动机两相流场计算方法研究

Research on the two-phase flow field calculation of defective solid rocket motors

通过对国内外含缺陷固体发动机性能预示方法的分析比较,提出采用"N S方程+粒子仿真"方法来计算两相流动的新途径,并对某轴对称两相流动的流场进行仿真计算,计算结果表明,该计算方法可行、计算模型合理,能够较为准确地反映两相流动中颗粒相对气体流动的影响。

Through the analysis and comparison among the methods of twophase flow field calculation of defective solid rocket motors at home and abroad, a new numerical method for twophase flow using 'NS equation with particle emulation' is put forward in this paper.As an example, the numerical computation on an axially symmetric field of twophase flow is carried out, and its result indicates that the method is feasible and the model reasonableThis method can accurately reflect the influence of the particle phase on the gas in the twophase flow