Abstract
The collapse of a vapor bubble near a flat solid boundary results in the formation of a jet that is directed toward the boundary. In more complex geometries such as corners, predictions of the collapse cannot be made in a straightforward manner due to the loss of axial symmetry. We experimentally investigate the bubble collapse and jet formation in corners formed of two flat solid boundaries with different opening angles. Using potential flow analysis, we accurately predict the direction of the jet and bubble displacement. We further show that for a corner with an opening angle , there exist analytic solutions that predict the jet direction for all the cases , where is a natural number. These solutions cover, in discrete steps, the full range of corners from the limiting case of a bubble near a single wall up to a bubble in between parallel walls .
- Received 29 May 2018
DOI:https://doi.org/10.1103/PhysRevFluids.3.081601
©2018 American Physical Society