Gas entrainment from gaseous supercavities

The understanding of the internal gaseous flow of artificially ventilated supercavities is developed using a locally homogenous, multiphase computational fluid dynamics model that is benchmarked using experimental data. The solutions indicate that gas leakage from a ventilated supercavity originates from the gaseous shear layers forming at the gas-water interface. Not only do these observations corroborate previous theory developed for cavities with toroidal closure, they also display evidence that shear-layer mechanisms remain important for cavities in the twin-vortex regime and when interacting with bodies. It is also found that the treatment of turbulence in these shear layers affects the outcome of computational fluid dynamics approaches. Lastly, a semi-empirical model considering these shear layers is proposed. Results from the model indicate an improved prediction capability of the relationship between cavity size and ventilation rate for steady, twin-vortex supercavities.



Work Title Gas entrainment from gaseous supercavities
Subtitle Insight based on numerical simulation
Open Access
  1. Michael P. Kinzel
  2. Jules W. Lindau
  3. Robert F. Kunz
License In Copyright (Rights Reserved)
Work Type Article
  1. Ocean Engineering
Publication Date February 1, 2021
Publisher Identifier (DOI)
Deposited July 15, 2021




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Work History

Version 1

  • Created
  • Added Final_Appeared.pdf
  • Added Creator Michael P. Kinzel
  • Added Creator Jules W. Lindau
  • Added Creator Robert F. Kunz
  • Published
  • Updated
  • Updated