Statistics and dynamics of coherent structures in compressible wall-bounded turbulence  

作　　者：Ming Yu SiWei Dong XianXu Yuan ChunXiao Xu 

机构地区：[1]State Key Laboratory of Aerodynamics,Mianyang 621000,China [2]Key Laboratory of Applied Mechanics,Institute of Fluid Mechanics,Deparmentof Engineering Mechanics,Tsinghua University Beijing 100084,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第12期32-47,共16页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.92052301,and 12202469);the National Key R&D Program of China (Grant No.2019YFA0405200)。

摘　　要：Compressible wall-bounded turbulence is ubiquitously encountered in modern aerospace and mechanical industries.In this review,we summarize the current state of the literature on the flow physics of compressible wall-bounded turbulence with simple flow geometry and boundary constraints,focusing on the statistics and dynamics of coherent structures,the seemingly organized flow patterns hidden amidst the nonlinear chaotic random processes.We summarize the conclusions brought by recent year studies regarding the influences of the Mach number and wall temperature on the velocity streaks,quasi-streamwise vortices and dilatational motions in the near-wall region,and the large-scale and very-large-scale motions in the outer region,from both statistical and dynamical point of view,with the primary concern of the similarities with and disparities from those in incompressible flows.

关 键 词：compressible flows turbulent boundary layers coherent structures 

分 类 号：O357.5[理学—流体力学]