Jet and shock characteristics of collapsing cavitating bubble in cryogenic environment

To study the dynamically changing interfacial structures due to the collapse of the cavitating bubble, and the mechanism whereby forces large enough to cause damage are brought to bear against a rigid wall is still somewhat obscure in cryogenic liquids. Study of individual collapsing bubbles is still a cornerstone to understanding the erosive damage process. The high impact pressure resulting from jet water hammer effect and collapsing shock waves due to collapsing cavitating bubble has advantages in stone fragmentation, shock wave lithotripsy and can erode the curved hydrofoil, and can alter the blade profile of any turbomachinery. In this paper, a collapsing cavitating bubble near straight solid surface dipped in cryogenic fluid has been investigated numerically using compressible framework for different standoff distances. Different jet characteristics, i.e. jet velocity and shock effects etc. have been recorded to quantify the damage and compared with room-temperature fluid combination i.e. air-water.