摘要
从广义惠更斯原理出发,构建基于偏移面方法的界面推进方法。该方法首先移动表面网格,通过求解每个网格点的法向位移和切向位移对每个点进行重构,在三维计算时由于不需要体网格,所以计算量小、效率高,并能解决含奇异点推进的真实复杂问题。利用该方法,对多种装药结构的固体火箭发动机三维燃面推进过程进行模拟,计算结果表明该方法具有较好的适用性及计算精度。
According to the generalized Huygens＇ principle, an interface advancement based on face-offsetting method is constructed. In this method, the interface meshes are moved and each mesh point is then reconstructed by solution of the normal and tangential displacement. The method is less calculated and highly efficient for no volume meshes needed in three-dimension computation. By using this method, the real complex problems including the singularities can be solved. The process of the three dimension burning face advancement of solid rocket motor is simulated, proving its good flexibility and numerical precision.
出处
《导弹与航天运载技术》
北大核心
2012年第4期50-52,共3页
Missiles and Space Vehicles
基金
国家重大基础科学研究项目(973-61338)
关键词
偏移面方法
界面推进
固体火箭发动机
燃面
Face offsetting method
Interface advancement
Solid rocket motor
Burning face
