分离流中若干问题的分析研究  

Physical analysis of several problems in separated flows

作　　者：谢昱飞[1] 刘金合[2] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000 [2]国家计算流体力学实验室,北京100083

出　　处：《空气动力学学报》2007年第B12期14-23,共10页Acta Aerodynamica Sinica

摘　　要：运用物理分析，研究了分离流中现存的若干问题：背风区对称线附近表面流拓扑、垂直于体轴的截面流线的性状、细长体绕流不对称流动、旋涡向内转和向外转等。引用的实验及计算结果与分析结论是一致的。Physical analysis is used to study several problems existing in separated flows： the topology of surface flow near the leeside symmetric line, the characteristics of sectional asymmetries occurring in flows around slender bodies, and the streamlines on cross-sections perpendicular to the body axis, inward or outward spiral directions of vortices. Cited expefimental or computational results agree with the analytical conclusions

关 键 词：分离流 表面流 旋涡结构 非对称 旋涡转向 

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]