Dynamic pressure enhancement upon disk impact on a boiling liquid
Fluid Dynamics
2025-12-08 v2
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.
Cite
@article{arxiv.2505.16668,
title = {Dynamic pressure enhancement upon disk impact on a boiling liquid},
author = {Yee Li and Fan and Bernardo Palacios Muniz and Nayoung Kim and Devaraj van der Meer},
journal= {arXiv preprint arXiv:2505.16668},
year = {2025}
}