プラントル数およびレイノルズ数依存性を考慮した乱流熱流束モデル

概要

論文の詳細を見る
The turbulent heat transfer in a channel flow for different thermal boundary conditions has been examined with the use of direct numerical simulations (DNS's). As for the modeling of the turbulent heat transport, various models have been proposed to date. They have been tested for thermal boundary condition with the mean temperature gradient only in the wall-normal direction. The present study is to propose a turbulent heat flux model based on the linearity principle in consideration of the Reynolds and Prantl number effects and to compare the model with the existing DNS data. The results are in good agreement with the DNS data for various Reynolds and Prandtl numbers under various thermal boundary conditions including the wall-normal and spanwise temperature gradient.
社団法人日本機械学会の論文
1999-10-25