斜激波与弓形激波相互作用的彩虹纹影实验研究

推进技术 ›› 2015, Vol. 36 ›› Issue (5): 671-677.

斜激波与弓形激波相互作用的彩虹纹影实验研究

吴文堂¹,洪延姬¹,王殿恺^1,2,李　倩¹,叶继飞¹,蒋冠雷³

装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416; 清华大学航空航天学院，北京 100083,装备学院激光推进及其应用国家重点实验室，北京 101416,装备学院激光推进及其应用国家重点实验室，北京 101416,北京跟踪与通信技术研究所，北京 100094

发布日期:2021-08-15
作者简介:吴文堂(1987—)，男，博士生，研究领域为流动显示与流动控制。E-mail:aricwwt@sina.com 通讯作者:洪延姬(1963—)，女，博士，教授，研究领域为激光推进、流动控制和流场诊断技术。
基金资助:
国家自然科学基金(11372356)。

Experimental Investigation on Oblique Shock and Bow Shock Interaction with Rainbow Schlieren

State Key Laboratory of Laser Propulsion and Application，Academy of Equipment，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Academy of Equipment，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Academy of Equipment，Beijing 101416，China; School of Aerospace，Tsinghua University，Beijing 100083，China,State Key Laboratory of Laser Propulsion and Application，Academy of Equipment，Beijing 101416，China,State Key Laboratory of Laser Propulsion and Application，Academy of Equipment，Beijing 101416，China and Beijing Institute of Tracking and Communication，Beijing 100094，China

Published:2021-08-15

摘要/Abstract

摘要： 斜激波与弓形激波相互作用形成的波系结构可以分为六类，其中IV型激波干扰产生了超声速“喷流”，产生了极高的热载和压载。基于彩虹纹影显示技术，实验获得了六类激波干扰彩虹纹影照片，分析了各类激波干扰的波系结构。通过数值计算，获得了有无斜激波干扰的条件下，壁面附近温度与压强的分布，讨论了IV型激波干扰产生极高热载和压载的原因。研究表明，激波干扰发生以后，钝头体表明压载与热载急剧增加，尤其是IV型激波干扰，形成的超声速“喷流”射向钝头体壁面的超声速射流，会导致峰值压力剧烈升高，其数量相当于来流静压的近40倍，驻点附近的热流升高将近8倍。

关键词: 激波相互作用；IV型激波干扰；彩虹纹影；流动显示

Abstract: There are some typical fluid states in the hypersonic vehicle. As one of these typical fluid states，oblique shock and bow shock interaction on the hypersonic inlet lip lead to the most serious pressure load and heat exchange，which possess much serious influence on hypersonic inlet and the hypersonic vehicle. It could be divided into six types of shock-shock interaction in this typical fluid state，and the type IV shock-shock interaction leads to supersonic jet. Six types of shock-shock interaction were obtained by rainbow schlieren system. Feature of temperature and pressure distribution at blunt body was discussed and the mechanism of serious pressure load and heat exchange was analyzed. The result shows that the pressure load and heat exchange will increase sharply after the shock-shock interaction，especially in the type IV shock-shock interaction which will lead to more than 40 times pressure load and more than 8 times heat exchange to the isolated blunt body because of its supersonic jet.

Key words: Shock-shock interaction；Type IV shock interaction；Rainbow schlieren；Flow visualization

吴文堂,洪延姬,王殿恺,李　倩,叶继飞,蒋冠雷. 斜激波与弓形激波相互作用的彩虹纹影实验研究[J]. 推进技术, 2015, 36(5): 671-677.

WU Wen-tang¹,HONG Yan-ji¹,WANG Dian-kai^1,2,LI Qian¹,YE Ji-fei¹,JIANG Guan-lei³. Experimental Investigation on Oblique Shock and Bow Shock Interaction with Rainbow Schlieren[J]. Journal of Propulsion Technology, 2015, 36(5): 671-677.

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