轮毂组合抽吸对旋转冲压压缩转子性能的影响  

Effects of Hub Combined Boundary Layer Suction on the Performance of a Ram-rotor

作　　者：韩吉昂[1] 薛嘉麒 钟兢军[1] 管健[1] 

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116026

出　　处：《热能动力工程》2016年第12期38-47,共10页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(51406022);辽宁省自然科学基金资助项目(2013020129);辽宁省教育厅科学研究一般项目(L2013199);辽宁省高校创新团队支持计划资助项目(LT2015004)

摘　　要：为改善旋转冲压压缩转子通道内的流场结构,提升旋转冲压压缩转子的气动性能,采用Fluent软件对3种不同轮毂组合抽吸方式下的旋转冲压压缩转子流场进行了数值模拟,分析了各方案下旋转冲压压缩转子的总体性能以及内部流动特征,并探讨了抽吸流量对旋转冲压压缩转子性能的影响。结果表明:3种抽吸组合均能实现效率或压比的提高,在方案2中,左隔板附近激波强度有所提高,且激波数目增加,转子承压能力提升,其压比提高了5.2%;方案3中,旋转冲压压缩转子流道内附面层分离得到有效控制,在压比几乎不变的情况下,效率提升了1.1%;改变抽吸流量会对旋转冲压压缩转子的流场及性能产生一定的影响,效果不明显。In order to improve the flow structure of the ram-rotor passage and the aerodynamic performance of ram-rotor,Fluent software was used to simulate the overall performance and flow characteristics of the ram-rotor,and the influence of suction flow rate on performance of ram-rotor was discussed. The results show that: three schemes of combined suction on hub can improve the flow field of ram-rotor,and the efficiency or pressure ratio. In Case 2,the loading capacity of the ram-rotor is improved significantly,and the pressure ratio increases by 5. 2%. In Case 3,the boundary layer separation of the ram-rotor passage is controlled effectively,and the efficiency increases by 1. 1% almost without changing pressure ratio. The influence of suction flow rate on performance of the ram-rotor is not evident.

关 键 词：旋转冲压压缩转子 组合抽吸 性能 数值模拟 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]