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arXiv · 2505.16668

Dynamic pressure enhancement upon disk impact on a boiling liquid

Yee Li·Fan·Bernardo Palacios Muniz·Nayoung Kim·Devaraj van der Meer
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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.

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Yee Li, Fan, Bernardo Palacios Muniz, Nayoung Kim, Devaraj van der Meer. 2025-05-22. Dynamic pressure enhancement upon disk impact on a boiling liquid. https://doi.org/10.1103/zx6s-1lwp

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