摘要
这里以高速飞行子弹周围空气流场为研究对象,通过二维建模和非结构化网格划分,采用Spalart-Allmaras湍流模型进行离散求解,考察了子弹周围空气场的温度、压力、速度分布及子弹壁面的受力情况,并对其进行数值分析与仿真,同时根据仿真与实际情况的比较,肯定了仿真的可靠性和Spalart-Allmaras模型的可行性,为子弹的优化设计提供了理论参考。
This paper considers the ambient air ambient airflow field of the submissile which is flying in high speed as the research subject. Through two dimensional modeling and non - structured mesh generation and adopting Spalart - Allmaras turbulent model for dispersed resolution, the temperature, pressure, velocity distributing of the air flow field around the submissileare studied by analyzing and simulating. Meanwhile, through compare of the simulation and actual condition, reliability of the simulation and feasibility of the Spalart - Allmaras model are assured. They provide theoretical reference to the optimization of the submissile design.
出处
《机械设计与制造》
北大核心
2006年第3期76-77,共2页
Machinery Design & Manufacture
