1469 PIV・LIFによる単一気泡周りの液相運動と物質移動の可視化計測(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

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Liquid motion and mass transfer around a single bubble was experimentally investigated. High resolution PIV and LIF methods using a high-speed-video camera enable simultaneous visualization of the liquid motion and mass transfer around a single bubble. Dissolution process of a CO_2 bubble (2.8mm diameter) rising in a zigzag trajectory was observed. As a result, the dissolution of CO_2 intensively depended on the surrounding liquid motion, especially horse-shoe type vortices. Moreover, in order to evaluate the effects of a surfactant on the mass transfer from the bubble, 1-pentanol was added. We clarified that the change of the separation phenomena due to the Marangoni convection affects both the liquid motion and the mass transfer.
一般社団法人日本機械学会の論文
2007-09-07