摘要
潜射导弹水下高速运动时,弹体表面的空化现象对导弹的力学环境有重要影响。阐述了空化产生的机理,并通过数值模拟研究了空化流动的流场结构,分析了空化数及非凝结性气体含量对空化流动的影响。研究结果表明:空化数越小,水中非凝结性性气体含量越多,弹体表面空化就越剧烈,空化对导弹所受水动力的影响也越大。
Cavitation on the missile's surface has great effect on mechanical environment of submarine launched missile moving with a high speed underwater.In this paper,the mechanism of cavitation flow was given.According to numerical simulation,the cavitation flow structure was obtained.The effect of cavitation number and non-condensable gases mass fraction on cavitation flows was analysed.The research conclusions indicate that cavitation on the missile's surface is more tempestuous with smaller cavitation number an...
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2007年第6期1506-1509,1523,共5页
Journal of Astronautics
关键词
潜射导弹
空化流动
数值模拟
Submarine launched missile
Cavitation flows
Numerical simulation