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V形钝化前缘激波干扰问题
Shock Interactions Generated by V-shaped Blunt Leading Edges
【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。
【Abstract】 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.
【Key words】 shock interaction; shock oscillation; aerothermal load; V-shaped blunt leading edge; aerodynamic optimization;
- 【文献出处】 气动研究与试验 ,Aerodynamic Research & Experiment , 编辑部邮箱 ,2024年05期
- 【分类号】V211.48
- 【下载频次】17