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- W604801843 abstract "Direct numerical simulation (DNS) of turbulent heat transfer in a channel flow has been carried out with a higher Reynolds number up to Reτ=640, which is based on the friction velocity uτ and the channel half width δ. The configuration is a fully developed turbulent channel flow with uniform heating from both walls. Calculated conditions are the Reynolds numbers of 180, 395 and 640 and the molecular Prandtl numbers of 0.025 and 0.71. Turbulence quantities such as temperature variance, turbulent heat fluxes, their correlation coefficients, turbulent Prandtl number and time scale ratio are presented to investigate the Reynolds- and Prandtl-number effects and the scaling issue up to Reτ=640. Moreover, the mechanism of production and destruction for the wall-normal turbulent heat flux has been examined through budget of transport equations and quadrant analysis." @default.
- W604801843 created "2016-06-24" @default.
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- W604801843 date "2003-10-25" @default.
- W604801843 modified "2023-09-24" @default.
- W604801843 title "Reτ=640までの平行平板間乱流熱伝達のDNS : レイノルズ数・プラントル数の影響の検討(熱工学,内燃機関,動力など)" @default.
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