J0502-1-2 Measurement of liquid phase around a zigzagging ascent bubble via Stereoscopic PIV

Abstract

The liquid phase around a zigzagging ascent bubble move three-dimensionally. In this study, Stereoscopic particle image velocimetry (PIV) was applied to measurement of liquid motion around a zigzagging ascent bubble. In this method, a zigzagging bubble was captured by high-speed video cameras from two directions. The two cameras satisfied the scheimpflug condition. To minimize the effect of reflection of YAG laser from the surface of a bubble, Sharp Cut Filters was set in front of each camera. As a result, instantaneous three component velocity fields were obtained. From these results, we compared the results of stereoscopic PIV with the visualization of mass transfer of CO_2 from bubble surface via LIF with HPTS.