Study of the behavior of a bubble attached to a wall in a uniform electric field

摘要: Abstract In order to investigate the effects of a uniform electric field on bubble attached wall, numerical analyses and experiments have been carried out. The orthogonal curvilinear coordinate system generated numerically has employed for studies based finite-difference solution governing equations. steady shape is obtained under fixed contact radius condition as part free boundary problem. Along with determination, Laplace equation potential solved simultaneously. experimental studies, an air one plate parallel-plate electrode visualized applied field. results show generally good agreements. An lower found be extended in direction parallel elongation increases increase strength. Consequently, angle also strength if fixed. On other hand, fixed, decreases increases. It observed experimentally that departure volume remains nearly constant This fact suggests downward force exerted surface same decrease tension due