September 25, 2025Physics of Fluids

Theoretical modeling of cavity dynamics with thermodynamic effects during high-speed water entry

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Theoretical model predicts hydrodynamic characteristics during high-speed water entry, indicating compressibility effects influence loads.

The theoretical model accurately predicts cavity dynamics and impact loads during high-speed water entry.
Numerical simulations reveal good agreement with experimental data for cavity pressure and vertical displacements.
Tail-slapping oscillation is observed during water entry, with higher preset cavitator angles leading to increased peak normal loads.
The integration of thermodynamic and mass transfer models enhances understanding of hydrodynamic behaviors.

Yang et al. (2025) studied this question.

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Theoretical model predicts hydrodynamic characteristics during high-speed water entry, indicating compressibility effects influence loads.