低レイノルズ数域における後方ステップ流れ : はく離および再付着領域における壁面近傍の時間平均挙動(流体工学,流体機械)

概要

論文の詳細を見る
The objective of the present paper is to investigate Reynolds number dependence of separation and reattachment process over a backward facing step in a low Reynolds number range. A study on low Reynolds number flow such as the flow around the micro device is strongly required in MEMS development. The Reynolds number based on step height is set at 133 to 3690 in a micro sensing wind tunnel. The reattachment and separation points are determined from the detailed measurement on forward flow fraction by Micro Flow Sensor, and the vortex structure is visualized with a high speed video camera. The results show a strong dependence of Reynolds number on the flow behavior on the step and opposite-side wall downstream of the step.
社団法人日本機械学会の論文
2006-11-25