定常流场中二维激波反射迟滞现象研究进展

Advances in 2D Shock Reflection Hysteresis Phenomenon

关键词:  迟滞现象  定常激波反射  研究进展  综述

Key words:  Hysteresis  Steady shock reflection  Advances  Review

摘要:

为深入理解超声速飞行器和动力系统流场中存在的激波反射迟滞现象，对近年来有关定常激波反射迟滞文献资料进行了调研和总结。回顾了定常激波反射迟滞现象的提出与证实过程，介绍了改变入射激波形状、改变下游波系结构等可引起激波反射出现迟滞的实现方式，并对粘性效应、三维效应和动态效应等影响激波反射迟滞现象的因素进行了探讨，对激波反射迟滞现象的研究热点和难点问题进行了分析与总结。

Abstract:

To understanding the shock reflection hysteresis phenomenon which exists in the flow fields of supersonic aircraft and power unit comprehensively and deeply，the research progress concerning the steady shock reflection hysteresis phenomenon is reviewed. The development of the hysteresis phenomenon is analyzed in detail. Then，the methods to obtain the hysteresis phenomena are overall described，such as the hysteresis induced by the transformation of the incident shock shape，the hysteresis induced by the evolution of the downstream wave configurations. At the same time，the viscous effects，the three-dimensional effects and the dynamic effects in shock reflection hysteresis are discussed. Lastly，the key problems for the development of the steady shock reflection hysteresis are analyzed and the conclusions are made based on analysis.