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Simulation of Free Surface Compressible Flows Via a Two Fluid Model

Abstract : The purpose of this communication is to discuss the simulation of a free surface compressible flow between two fluids, typically air and water. We use a two fluid model with the same velocity, pressure and temperature for both phases. In such a numerical model, the free surface becomes a thin three dimensional zone. The present method has at least three advantages: (i) the free-surface treatment is completely implicit; (ii) it can naturally handle wave breaking and other topological changes in the flow; (iii) one can easily vary the Equation of States (EOS) of each fluid (in principle, one can even consider tabulated EOS). Moreover, our model is unconditionally hyperbolic for reasonable EOS.
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Contributor : Denys Dutykh <>
Submitted on : Friday, March 14, 2008 - 11:13:07 AM
Last modification on : Thursday, July 2, 2020 - 5:17:18 PM
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Frédéric Dias, Denys Dutykh, Jean-Michel Ghidaglia. Simulation of Free Surface Compressible Flows Via a Two Fluid Model. ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering, Jun 2008, Estoril, Portugal. pp.43-50, ⟨10.1115/OMAE2008-57060⟩. ⟨hal-00258161v2⟩



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