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采用计算流体力学方法,从曲线坐标NS方程出发,取用NND2M差分格式,对导弹发射时与地面形成碰撞喷流流场进行数值模拟,计算结果和实验数据符合较好。在此基础上,分析了碰撞喷流的流场结构及特性。
Computational fluid dynamics (CFD) method is used to simulate the jet flow field formed by the collision with the ground when the missile launches from the Navier-Stokes equations with the NND2M difference scheme. The calculated results are in good agreement with the experimental data. Based on this, the flow field structure and characteristics of collision jet are analyzed.