完全透過性平板間乱流のレイノルズ数依存性(乱流基礎(2),一般講演)

概要

論文の詳細を見る
Direct simulations of turbulent flow in a channel with perfectly-permeable walls have been performed. The key findings obtained from a case of Re=110 are (i) wall imperviousness keeps near-wall quasi-laminar flow from being turbulent, which prevents direct interaction between the wall and the turbulent flow and hence makes a substantial contribution to drag reduction in the flow, and (ii) the permeable wall highly promotes momentum transport over the whole domain and sustain turbulence at such a low Reynolds number where the flow cannot be turbulent in the traditional plane channel. We will give a talk on Reynolds-number dependence of the flow features.
日本流体力学会の論文
2008-09-04