粒子追跡法に基づく分散性混相流の数値解析 : 第2報,気泡が誘起する液相速度場に関する手法の検証

概要

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Single bubbles rising through stagnant liquids were calculated using a particle tracking method (PTM) and an interface tracking method (ITM) to examine whether or not the two-way particle tracking method proposed in the previous study can give good predictions for bubble-induced liquid velocity fields Comparisons of the two methods were conducted for two types of three-dimensional bubbles : one is a spherical bubble with a creeping flow and the other is a spherical-cap bubble with a wake. It was confirmed that liquid velocity fields predicted by PTM for both types of bubbles agreed qualitatively with those predicted by ITM, and PTM can accurately predict a liquid velocity distribution in a wake region, provided that the bubble diameter is greater than the computational cell size.
社団法人日本機械学会の論文
1996-07-25