浮力ダンピング下の低Re数流れに対応可能な新しいk-εモデル : 温度成層した室内気流の数値解析に関する研究(その2)

概要

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A new k-ε model which includes damping effect on vertical turbulent transport due to thermal stratification is proposed. The proposed model was tested by application to two kinds of two-dimensional thermally stratified flow fields. One is a high-Reynolds-number open channel flow, and the other is a low-Reynolds-number flowfield within an enclosure. The new model also includes low-Reynolds-number treatment which is effective not only in the vicinity of the wall but also apart from the wall. With the aid of this new low-Reynolds-number treatment, the proposed k-ε model becomes applicable to a flowfield which includes both turbulent area and pseudo - laminar area caused by thermal stratification. The agreement between the results given from the new k-ε model and the experimental results was rather good.
社団法人日本建築学会の論文
1996-03-30