Direct numerical simulation of compressible turbulent flows |
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Authors: | Xin-Liang Li De-Xun Fu Yan-Wen Ma Xian Liang |
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Affiliation: | Xin-Liang Li·De-Xun Fu·Yan-Wen Ma·Xian Liang LHD,Institute of Mechanics,Chinese Academy of Sciences,100190 Beijing,China LNM,China |
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Abstract: | 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 ... |
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Keywords: | Direct numerical simulation Compressible turbulence Coherent structures Turbulent boundary-layer flow |
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