Open Access

ARTICLE

On the Liquid-Vapor Phase-Change Interface Conditions for Numerical Simulation of Violent Separated Flows

Matthieu Ancellin^{1, *}, Laurent Brosset², Jean-Michel Ghidaglia¹
1 Université Paris-Saclay, ENS Paris-Saclay, CNRS, Centre Borelli, Gif-sur-Yvette, France.
2 GTT (Gaztransport & Technigaz), Saint-Rémy-lès-Chevreuse, France.
* Corresponding Author: Matthieu Ancellin. Email: .
(This article belongs to this Special Issue: CFD Modeling and Multiphase Flows)

Fluid Dynamics & Materials Processing 2020, 16(2), 359-381. https://doi.org/10.32604/fdmp.2020.08642

Received 24 September 2019; Accepted 03 March 2020; Issue published 21 April 2020

Abstract

Numerous models have been proposed in the literature to include phase change into numerical simulations of two-phase flows. This review paper presents the modeling options that have been taken in order to obtain a model for violent separated flows with application to sloshing wave impacts. A relaxation model based on linear non-equilibrium thermodynamics has been chosen to compute the rate of phase change. The integration in the system of partial differential equations is done through a non-conservative advection term. For each of these modelling choices, some alternative models from the literature are presented and discussed. The theoretical framework for all phase change model (conservation equations and entropy growth) is also summarized.

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Keywords

Phase change modeling, two-phase flow, non-equilibrium thermodynamics, compressible flow, hyperbolic system of conservation laws.

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