What will happen when a bubble is close to a flexible soft boundary?

ER10845 -The interaction between an oscillating bubble and a flexible soft boundary is an important phenomenon, which is commonly found in nature, marine industrial applications, and medical treatments. The behavior of an oscillating bubble is greatly dependent on the characteristics of a boundary that it is placed near to.  If the boundary is rigid, the bubble moves towards it; whereas if the boundary is a free surface, the bubble migrates away from it. The behavior of the bubble near a flexible soft boundary would fall in-between these mentioned limiting cases and is more complex.  We investigate the physical behavior of the interaction between a bubble and a flexible soft boundary numerically and experimentally. The results from this study may provide physical insights into the complex physics of bubble-rubber interaction. The understanding is possibly applicable in biomedicine for drug delivery to tissue, which is a soft material. It is also probably useful in the marine industry where ultrasonic bubbles are generated for the defouling of the ship surfaces which has been coated with an elastic material. There is also potential interest in underwater explosion near an elastic structure.