Abstract
We have improved the numerical scheme based on the boundary element method combined with the finite volume method to consider the heat transfer of internal gas in the final stage of bubble collapse. Unstructured adaptive grids are used inside the largely deformed bubble. We investigate the motion of the collapsing bubble near a plane rigid wall. The dynamics of a toroidal bubble, which is formed after the penetration of liquid microjet, are taken into account in the present analysis. The results show that the present scheme can handle the temperature fields for the toroidal bubble.
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