高解像度DNSを用いた平行平板間乱流熱伝達におけるレイノルズ数とプラントル数の影響(乱流の予測とモデリング(1),一般講演)

概要

論文の詳細を見る
Direct numerical simulation of turbulent heat transfer in a channel flow through high spatial resolution has been carried out for Re_τ=180 and 395, which is based on the friction velocity and the channel half width. The configuration is a fully developed turbulent channel flow with uniform heat flux heating from both the walls. Molecular Prandtl numbers are set to be 0.71, 1.0, 2.0, 7.0 and 10.0. The Reynolds and Prandtl number effects on the turbulence statistics such as the turbulent Prandtl number and the skewness and flatness factors are examined. Moreover, the budgets for the dissipation rate of the temperature variance and the turbulent heat flux are investigated to improve turbulent heat flux model.
日本流体力学会の論文
2007-08-06