基于当地变量的横流转捩预测模式研究进展  

Progress on Prediction Models for Crossflow Instabilities Dominated Transition Based on Local Variables

作　　者：徐家宽 段毅 杨家盛 乔磊[1] 刘建新[3] 白俊强[1] XU Jia-kuan;DUAN Yi;YANG Jia-sheng;QIAO Lei;LIU Jian-xin;BAI Jun-qiang(Northwestern Polytechnical University,Xi′an 710072,China;Science and Technology on Space Physics Laboratory,China Academy of Launch Vehicle Technology,Beijing 100076,China;Tianjin University,Tianjin 300072,China)

机构地区：[1]西北工业大学,陕西西安710072 [2]中国运载火箭技术研究院空间物理重点实验室,北京100076 [3]天津大学,天津300072

出　　处：《气体物理》2023年第3期19-34,共16页Physics of Gases

基　　金：国家自然科学基金(12102361);中央高校基本科研业务费(G2021KY05101)

摘　　要：边界层转捩预测一直是流体力学领域的研究热点和难点。其中,横流转捩是飞行器表面转捩现象中关键的一种。由于受到来流扰动、壁面粗糙度、壁面压力梯度、当地后掠角、横流特征Reynolds数、边界层边缘Mach数、壁面曲率和温度等因素的影响,横流转捩的预测非常复杂且困难。近年来诸多研究机构都针对该问题提出了不同思路的预测方法,从根本上分为两大类:一类是建立临界转捩Reynolds数准则,通过与当地的特征尺度Reynolds数进行比较判定是否发生转捩;另一类则是模式化的线性稳定性理论,计算得到横流扰动增长因子与转捩阈值相比较判定是否发生转捩。将系统回顾和总结低速边界层和高速边界层的几类典型的基于当地变量的横流转捩预测模式,并展望下一步的研究方向。Boundary layer transition prediction has always been a hot and difficult research topic in the field of fluid mechanics.Among them,the crossflow induced transition plays a crucial role in the transition phenomenon on the surface of the aircraft,which is affected by the freestream disturbance,wall surface roughness,wall pressure gradient,local sweep angle,crossflow characteristic Reynolds number,Mach number,wall curvature and temperature.All those factors make the prediction of the cross-flow transition very complicated and difficult.In recent years,many research institutions have proposed various prediction methods for this problem,which are basically divided into two categories:one is to establish the critical transition Reynolds number criterion,and to determine whether transition occurs;the other type is the modeled linear stability theory,which calculates the cross-flow disturbance amplification factor and compares it with the transition threshold to determine whether transition occurs.Several typical prediction models of crossflow dominated transition based on local variables of low-speed boundary layer and high-speed boundary will be systematically reviewed and summarized,and the future research directions will be prospected.

关 键 词：边界层转捩 横流转捩 当地化求解 转捩-湍流模式 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]