表面効果ベクトルによるレイノルズ応力の圧力拡散と再分配のモデリング(乱流の予測とモデリング(3),一般講演)

概要

論文の詳細を見る
The pressure diffusion in the Reynolds stress transport equation is modelled using a vector which represents non-local effects of solid and free surfaces. The 'surface effect vector' is obtained as the solution of an elliptic differential equation with a simple boundary condition at the surfaces. The vector is an extension of a 'wall effect vector' introduced by Shima and Kobayashi (2007) in modelling the stress redistribution for near-wall flows. The redistribution model is also extended to free surface flows. The pressure diffusion and redistribution models are tested in an open channel flow. It is shown that the pressure diffusion eliminates an anomalous behaviour: a negative production rate of the turbulence energy near the free surface
日本流体力学会の論文
2008-09-04