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arXiv · 0802.3013

Simulation of Free Surface Compressible Flows Via a Two Fluid Model

Frederic Dias·Denys Dutykh·Jean-Michel Ghidaglia
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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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Frederic Dias, Denys Dutykh, Jean-Michel Ghidaglia. 2008-03-14. Simulation of Free Surface Compressible Flows Via a Two Fluid Model. https://doi.org/10.1115/omae2008-57060

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