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本文通过对DSMC方法关键技术进行研究,实现了存在干扰物条件下高空羽流三维流场的DSMC仿真,并对工程估算方法的计算精度和适用范围进行评价。通过选择不同的气体分子与壁面相互作用模型研究了壁面边界条件对羽流撞击效应的影响。
In this paper, the key technologies of DSMC method are studied, and the DSMC simulation of the 3D flow field in high altitude plume under the condition of interferences is realized. The calculation accuracy and applicable range of the engineering estimation method are also evaluated. The effects of wall boundary conditions on plume impact effects were studied by choosing different gas molecules and wall interaction models.