改善内乘波式进气道出口均匀性的内收缩基本流场研究  

Study of Internal Compression Flowfield for Improving the Outflow Uniformity of Internal Waverider Inlet

作　　者：郭军亮[1] 黄国平[1] 尤延铖[1] 梁德旺[1] 

机构地区：[1]南京航空航天大学内流研究中心,南京210016

出　　处：《宇航学报》2009年第5期1934-1940,1952,共8页Journal of Astronautics

摘　　要：内收缩基本流场的设计直接决定了内乘波式进气道最终性能。以出口流场均匀为目标,提出了两种新型内收缩流场,分别命名为ICFC流场和ICFD流场并给出了相应的设计方法。以来流马赫数6.0和出口马赫数3.0为条件,设计了含截短Busem ann流场在内的几种典型三维内收缩流场,开展了流场分析和性能对比。综合分析后发现,在保证流场具备较高性能参数的前提下,ICFC流场出口参数最均匀,更适合于内乘波式进气道设计。初步研究获得的ICFC流场主要性能参数随入口气流偏转角的变化规律,为改善内乘波式进气道出口均匀性设计提供了依据。The performance of internal waverider inlet is directly decided by the design of internal compression flowfield. In this paper, two kinds of new internal compression flowfields and their design methods are presented to get a uniform outflow. The two new internal compression flowfields are named ICFC and ICFD. In order to have a better understanding of these two flowfields, several typical flowfields are designed when the upstream Mach number is 6.0 and the outlet Mach number is set up to be 3.0. Performance comparision and analysis is done based on the inviscid calculation result. It is found out that the outflow of ICFC flowfield is much more uniform than other flowfields, which makes it be the best choice for internal waverider inlet design. The initial turning angle＇ s effect on the performance of ICFC flowfield is also studied in this paper and the corresponding principle will help the designer improve the outflow uniformity of the internal waverider inlet.

关 键 词：高超声速进气道 内乘波 内收缩基本流场 均匀出流 ICFC流场 ICFD流场 

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]