V形钝化前缘激波干扰问题  

Shock Interactions Generated by V-shaped Blunt Leading Edges

作　　者：李祝飞 王军 张志雨 杨基明[1] Li Zhufei;Wang Jun;Zhang Zhiyu;Yang Jiming(School of Engineering Science,University of Science and Technology of China,Hefei 230027,China)

机构地区：[1]中国科学技术大学工程科学学院,安徽合肥230027

出　　处：《气动研究与试验》2024年第5期1-13,共13页Aerodynamic Research & Experiment

摘　　要：针对高超声速进气道V形溢流口处极易形成复杂激波干扰,并产生严酷气动热/力载荷的问题,本文梳理和总结了近年来提炼模化出的V形钝化前缘(VBLE)及其相关研究的进展情况。回顾了V形钝化前缘模型的提出过程,介绍了其几何及流动的主要特点,分析了V形钝化前缘的激波干扰类型、气动热/力载荷以及激波振荡特性,探讨了降低局部极高气动热/力载荷及抑制激波振荡的优化设计方案,并对未来的研究方向进行了展望,以期促进对V形钝化前缘激波干扰现象的深入理解。A V-shaped cowl lip is commonly designed for flow spillage in hypersonic inward-turning inlets,which leads to complex flow structures and severe aerothermal/pressure load.A number of investigations has been performed to understand the shock interactions and underlying mechanisms,since a generic V-shaped Blunt Leading Edge(VBLE)was proposed.The types of the shock interactions,characteristics of aerothermal/pressure load,unsteady shock oscillations,and aerodynamic optimization of the VBLE were reviewed,after a retrospection of the naissance of the VBLE.Finally,future work was discussed to improve knowledge of the VBLE to a new horizon.

关 键 词：激波干扰 激波振荡 气动热 V形钝化前缘 优化设计 

分 类 号：V211.48[航空宇航科学与技术—航空宇航推进理论与工程]