流線の曲率効果を包含した圧力ひずみ相関モデルと旋回乱流減衰過程の予測 : 第2報,長い円管内での旋回乱流減衰過程の数値予測

概要

論文の詳細を見る
Numerical predictions employing three types of stress equation models, which are those of Launder et al. , Gibson-Younis and the authors' are conducted and compared with an experiment of turbulent decaying swirling flow in a long circular pipe. The accuracy of the prediction with the authors' model is demonstrated as compared with those of Launder et al. and Gibson-Younis. Characteristic momentum transport induced by swirl is interpreted with respect to the interaction between production and pressure-strain-rate terms. In particular, it is stressed that it is important to consider the effect of isotropization on source-like terms which appear in convection terms.
社団法人日本機械学会の論文
1993-09-25