Collapse of a Taylor bubble at free surface: An experimental investigation

Abstract

An experimental investigation is performed to study the bursting of the Taylor bubble at free surface and film collapse around the bubble. The study is conducted for only circular tube in vertical position with different liquids (water, mustard oil, glycerin, and silicon oil) as bulk. Experimentally collapse of Taylor bubble is tracked at the free surface with different tube diameters (19 and 28 mm) by proper arrangement of high speed camera (3000 frames/s) and light. Profile contour of bubble at different stages of bursting process is traced which reveals bubble top film and wall thickness variation with time. Behavior of Taylor bubble collapse in different liquids is explained thoroughly by using visualization and photographic recording technique.