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用两种方法确定导弹射出发射筒时的筒口爆振波流场。第一种方法是与时间相关的有限差分法,第二种方法是根据相似条件建立的一种近似解法。来复枪与加农炮的出口爆振波主要流动是轴向的。与此不同,导弹弹射产生的筒口爆振波是径向向外的。导弹底部及发射筒出口处的几何形状对流场有显著影响。本文提供的分析结果图清楚地说明了这种趋势。两种关于导弹表面压力脉冲分析方法的相关性很好。分析结果与拦截导弹的试验结果完全一致。
Two kinds of methods are used to determine the flow field of the blasting wave at the mouth of a missile when the missile is launched from the launching tube. The first method is the time-dependent finite difference method, the second method is based on similar conditions to establish an approximate solution. The main flows of the rifles at the export of rifles and cannon are axial. In contrast, the burst wave generated by the missile ejection is radially outward. The geometry of the bottom of the missile and the exit of the launch tube has a significant effect on the flow field. The results of the analysis provided in this article clearly illustrate this trend. The correlation between the two methods for the analysis of pressure pulses on the missile surface is good. The results of the analysis are exactly the same as those of the interceptor missile.