Dynamics of a buoyant pulsating bubble near two crossed walls

The dynamics of a buoyant pulsating bubble near two crossed perpendicular rigid boundaries (a horizontal and vertical wall) are studied using the boundary element method combined with mirror images. Kelvin impulse elastic mesh velocity used to calculate direction volume liquid jet generated during collapse. numerical results show good agreement experiments. An increase in buoyancy causes local high-pressure zone at root move toward bottom bubble, causing rotate upward wall. At certain position, change buoyancy, dimensionless instant impact reaches minimum when is horizontal, peak occurring. A comprehensive parametric study characteristics, including direction, velocity, relative (the ratio impact), carried out terms standoff distances walls. Blake criterion can be judge whether pointing obliquely or downward, provided that it deviates significantly from direction. Depending on characteristics different found exhibit three distinct patterns behavior. Finally, we discuss changes as varied.