Direct numerical simulation of compressible turbulent flows  

作　　者：Xin-Liang Li De-Xun Fu Yan-Wen Ma Xian Liang 

机构地区：[1]LHD,Institute of Mechanics,Chinese Academy of Sciences, 100190 Beijing,China [2]LNM,Institute of Mechanics,Chinese Academy of Sciences, 100190 Beijing,China

出　　处：《Acta Mechanica Sinica》2010年第6期795-806,共12页力学学报（英文版）

基　　金：supported by the National Basic Research Program of China(2009CB724100);the National Natural Science Foundation of China(10632050,10872205,11072248).

摘　　要：This paper reviews the authors＇ recent studies on compressible turbulence by using direct numerical simulation （DNS）,including DNS of isotropic（decaying） turbulence, turbulent mixing-layer,turbulent boundary-layer and shock/boundary-layer interaction.Turbulence statistics, compressibility effects,turbulent kinetic energy budget and coherent structures are studied based on the DNS data.The mechanism of sound source in turbulent flows is also analyzed. It shows that DNS is a powerful tool for the mechanistic study of compressible turbulence.This paper reviews the authors＇ recent studies on compressible turbulence by using direct numerical simulation （DNS）,including DNS of isotropic（decaying） turbulence, turbulent mixing-layer,turbulent boundary-layer and shock/boundary-layer interaction.Turbulence statistics, compressibility effects,turbulent kinetic energy budget and coherent structures are studied based on the DNS data.The mechanism of sound source in turbulent flows is also analyzed. It shows that DNS is a powerful tool for the mechanistic study of compressible turbulence.

关 键 词：Direct numerical simulation Compressible turbulence Coherent structures Turbulent boundary-layer flow 

分 类 号：O357.5[理学—流体力学] TV131.1[理学—力学]