1468 単一上昇気泡の後流の可視化(S37-2 混相流動のダイナミックス(2),S37 混相流動のダイナミックス)

概要

論文の詳細を見る
The structure of the flow around a rising bubble in silicone oil was visualized by using photochromic dye. We present the first experimental evidence of the existence of the standing eddy, which was predicted numerically by Blanco & Magnaudet[Phys. Fluids, Vol.7, 1265-1274(1995)]. We also experimentally evaluated two kinds of critical aspect ratios over which the standing eddy or three dimensional wake exists. It was found that experimentally obtained critical aspect ratios were smaller than those obtained numerically, however both experimental and numerical results qualitatively agree that critical aspect ratios were bigger in lower Reynolds number.
社団法人日本機械学会の論文
2007-09-07