喷流气体性质对导弹侧向喷流流场的影响  

The effect of gas properties on the lateral jet interaction flowfield

作　　者：孙得川[1] 杨建文[1] 白荣博[1] 

机构地区：[1]西北工业大学航天学院燃烧流动和热结构国家级重点实验室,陕西西安710072

出　　处：《空气动力学学报》2010年第6期720-723,共4页Acta Aerodynamica Sinica

摘　　要：针对空气喷流和燃气喷流性质的不同,通过数值模拟的方法比较了侧向喷流控制流场的参数分布和放大因子,给出了采用空气模拟燃气喷流时边界条件的设置方法。计算结果显示:空气喷流的膨胀范围和影响范围均大于实际燃气的;但是在给定的边界条件设置下,喷流放大因子比较接近;随着攻角增大,两者的区别减小。For different properties of real hot gas and air,the flowfield and the amplification factor of lateral jet interaction were compared through numerical simulation.A method of how to set the boundary condition at lateral jet exit was given when using air jet to simulate the real hot gas jet.The results show that the expansion and influence range of air jet are larger than that of real hot gas,and the amplification factor of air jet less than that of real gas jet slightly.When increasing angle of attack,the difference between air jet and real gas jet becomes smaller.

关 键 词：侧向喷流 数值模拟 气体性质 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]