摘要
以超声速内流中的激波串流动为主要研究对象,首先对均匀来流条件下的激波串结构形态与振荡特性的研究进展进行了综述,涵盖了基于高分辨率实验测试方法和基于直接数值模拟、大涡模拟的激波串流动结构研究;揭示了激波串自激以及受迫振荡的波系演化行为和闭环反馈回路。然后,对等直管道背景波系干扰下的激波串运动特性的最新研究进展进行了综述,揭示了激波串突跳的触发机制,基于激波串运动特性的数学模型,给出了突跳运动的物理本质;同时,介绍了来流马赫数连续变化下激波串行为的初步研究成果。进一步,对弯曲通道混合背景波系干扰下的激波串流场的研究进展进行了综述,揭示了产生于弯曲构型上的压缩波-膨胀波混合背景波系结构;阐明了相比于等直通道,弯曲通道中激波串流动结构、压升规律预测以及运动特性等方面的异同;揭示了弯曲通道中旋涡产生、发展以及Hopf分岔机理;阐明了失稳流动的触发机制、波系演化行为、闭环反馈回路以及检测方法。最后,总结了激波串流场的主动、被动流动控制方法,分析了抽吸主动流动控制提升激波串流场抗反压能力的物理本质;揭示了微型涡流发生器被动流动控制对激波串结构与振荡的影响规律。
The shock train in the supersonic internal flow is regarded as the main research object in this paper. Firstly, the research progress of shock train structure and oscillation characteristics under uniform incoming flow is reviewed. The researches of flow field structure of shock train based on high-resolution experiments, direct-numerical simulation and large-eddy simulation are covered. The shock evolution behavior and close feedback loop of shock train self-excited and forced oscillations are revealed. Then, the latest research progress on the motion characteristics of shock train under the interference of background wave in rectangular straight channel is reviewed. The triggering mechanism of shock train sharp forward movement is revealed. Based on the mathematical model of shock train movement characteristics, the physical essence of sharp forward movement is given. At the same time, the preliminary research results of shock train behavior affected by continuous Mach number variation of incoming flow are introduced. Furthermore, the research progresses of shock train flow field under the interference of mixed background waves in curved channel are summarized.The mixed background wave structure of compression-expansion waves generated on the curved configuration is revealed. The similarities and differences of shock train flow structure, pressure rise prediction and motion characteristics in curved channel compared with rectangular straight channel are illustrated. The generation, development and Hopf bifurcation of vortex in the curved channel are revealed. The triggering mechanism, shock evolution behavior, close feedback loop and detection method of instability flow are illustrated. Finally, the active and passive flow control methods of shock train are summarized. The physical essence of suction flow control to improve the resistance backpressure characteristics of shock train flow field is analyzed. The effect of micro-vortex generator on the structure and oscillation of shock train is revealed.
作者
王子傲
陈若愚
李一鸣
常军涛
WANG Ziao;CHEN Ruoyu;LI Yiming;CHANG Juntao(School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China)
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2022年第9期2275-2291,共17页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.52125603)。
关键词
激波串
形态结构
振荡特性
主被动控制
shock train
morphological structure
oscillation characteristics
active and passive control
