摘要
采用3阶WENO方法计算了空空导弹在6 km高度,马赫数Ma=2下双喷流工作的情况。针对有攻角的对侧双喷流和零攻角下成直角的双喷流进行数值分析,得到主要结论:攻角造成了上下喷流的非对称,喷流在导弹迎风面的作用力小于其在背风面的作用力;在成直角的双喷流作用下,两喷流之间的干扰会增强喷流的作用,得到的单喷流等效放大因子增大很多。
Double jet flow field for air-to-air missile at 6 km altitude and Mα = 2 was calculated by using third order Weight ENO method. Contralateral double jet with 10° attack angle and right-angle double jet with 0°attack angle were numerically simulated. The results show that attack angle cause up-down asymmetry of jets, and the effect of jet located at upwind is stronger than that located at leeward. For right-angle double jet, the interaction of two jets can enhance effect of jet control, and the equivalent amplification factor of single jet is greater than that of only one jet.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2007年第3期188-190,232,共4页
Journal of Solid Rocket Technology
基金
中国博士后科学基金资助
中博字(2003)03
航空科学基金(No.03D12004)
关键词
双喷流
空空导弹
数值模拟
干扰
double jet
air-to-air missile
numerical simulation
interaction
作者简介
孙得川（1973-），男，博士后，主要从事计算流体力学和火箭发动机方面的研究。E-mail：suncfd@sina.com
