Dynamic pressure enhancement upon disk impact on a boiling liquid

Abstract

We experimentally investigate the impact of a flat, horizontal disk onto a boiling liquid, i.e., a liquid in thermal equilibrium with its vapor phase. We observe exceptionally high impact pressures deviating strongly from the inertial scaling found for impact in a non-condensable environment, coinciding with the rapid collapse of the vapor pocket entrapped below the disk. We explain our findings, which are relevant for the safe transportation of cryogenic fuels, as a result of vapor condensation, leading to accelerated vapor pocket contraction at high impact velocity and low vapor density.

References in corpus (2)

• Air-cushioning effect and Kelvin-Helmholtz instability before the slamming of a disk on water
• Disk impact on a boiling liquid: Dynamics of the entrapped vapor pocket

Cited by in corpus (1)

• Impact of boiling liquid droplets: Vapor entrapment suppression