横向氢气射流诱导斜爆轰波起爆的数值研究  

Numerical Study on the Oblique Detonation Wave Induced by a Transverse Hydrogen Jet

作　　者：马君涵 姚瑞扬 张斌[1,2] MA Junhan;YAO Ruiyang;ZHANG Bin(School of Aeronautics and Astronautics,Shanghai Jiao Tong University,Shanghai 200240,China;Sichuan Research Institute,Shanghai Jiao Tong University,Chengdu 610213,Sichuan,China;School of Computer Science and Technology,Qilu University of Technology,Jinan 250353,Shandong,China)

机构地区：[1]上海交通大学航空航天学院,上海200240 [2]上海交通大学四川研究院,四川成都610213 [3]齐鲁工业大学计算机科学与技术学部,山东济南250353

出　　处：《上海航天(中英文)》2025年第2期166-176,共11页Aerospace Shanghai(Chinese&English)

基　　金：国家自然科学基金资助项目(52176120)。

摘　　要：为实现在高空飞行条件下可控制的斜爆轰波(ODW)快速起爆,在诱导区内设置横向氢气射流是一种有效的主动控制方案。通过数值求解二维反应欧拉方程,研究了横向氢气射流诱导的ODW流场特征,以及射流动压比和射流角度对ODW的调控规律。结果表明:通过在诱导区内设置横向氢气射流可实现ODW的提前起爆,诱导产生的ODW具有强耦合和弱耦合2种起爆形式。此外,燃烧室出口ODW的高度与射流动压比和射流角度均成正比,可以通过改变射流动压比和射流角度对ODW进行动态控制,实现发动机的稳定工作。Setting a transverse hydrogen jet in the induction zone is an effective active control scheme to implement the controllable and fast initiation of an oblique detonation wave(ODW)under high altitude flight conditions.In this paper,the flow characteristics of the ODW induced by a transverse hydrogen jet and the effects of the jet dynamic pressure ratio and jet angle are studied by solving the two-dimensional reaction Euler equations.The results show that the accelerated initiation of an ODW can be implemented by setting a transverse hydrogen jet in the induction zone.The jet-induced ODW has two initiation patterns,i.e.,strong coupling and weak coupling.In addition,the height of the ODW at the exit of the combustor is proportional to the jet dynamic pressure ratio and jet angle,and the active control of the ODW can be implemented by changing the jet dynamic pressure ratio and jet angle.Therefore,with proper jet dynamic pressure ratio and jet angle,the stable operation of ODW engine can be achieved.

关 键 词：高超声速 斜爆轰波(ODW)发动机 横向射流 加速起爆 波系结构 动态控制 

分 类 号：O38[理学—流体力学]