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对空空导弹固体火箭冲压发动机二元混压超声速进气道进行了数值研究。应用NND格式耦合对流迎风矢通量分裂技术 (AUSM) ,按照MacCormack时间分裂方法对贴体坐标系下二维雷诺平均N S方程进行有限差分离散。数值模拟了此进气道多种工况下的流动状态。结果表明 ,对于捕获激波和模拟附面层内流动均有很好的效果。在此基础上分析了来流马赫数、进气道工作高度及出口反压对进气道性能参数的影响。
NUMERICAL STUDY ON BILATERAL MIXED SUPPRESSED AIR SUPPRESSION IN AIR-AIR-TO-PASS ROCK SOLID ROCKET ENGINES. The two-dimensional Reynolds averaged Navier-Stokes equations are discretized by the finite-difference method using the NND-coupled convective upwind vector splitting technique (AUSM) according to the MacCormack time-splitting method. Numerical simulation of the inlet under a variety of conditions of flow conditions. The results show that it has a good effect on the flow in the capture shock and in the simulated interface. Based on this, the influences of Mach Mach number, inlet working height and outlet backpressure on the performance parameters of the inlet were analyzed.