ラグランジ流描像による乱流輸送の統計理論III : 剪断流の理論(解析・予測・制御流体数理(3),一般講演)

概要

論文の詳細を見る
The general equations of turbulent transfer presented in the previous report were applied for the analysis of shear flows, i.e. the free turbulences such as wake, jet and mixing flow, and the turbulent boundary layer. The mechanisms of transportation of heat and momentum were pursued on the roles of largest eddies which have the organized structures dependent on the special boundary conditions of the flows. The explanations were presented for the dynamical behaviors of the organized eddies observed experimentally by taking analogy with the criterion of the stability of laminar flow at low Reynolds number, thereby the molecular viscosity replaced by the turbulent one. The difference between the transfer coefficient of heat and that of momentum, which was the problem firstly presented by G.I. Taylor, was attributed to the relative magnitude of mean shear to that of turbulent eddies, which is characteristic to the structures of the organized eddies in these shear flows.
日本流体力学会の論文
2009-09-02