A multicomponent real-fluid fully compressible four-equation model for two-phase flow with phase change

Central Upwind Scheme for a Compressible Two-Phase Flow Model

In this article, a compressible two-phase reduced five-equation flow model is numerically investigated. The model is non-conservative and the governing equations consist of two equations describing the conservation of mass, one for overall momentum and one for total energy. The fifth equation is the energy equation for one of the two phases and it includes source term on the right-hand side whi...

A five equation reduced model for compressible two phase flow problems

This paper studies an Eulerian diffuse interface model for the simulation of compressible multifluid and two-phase flow problems. We first show how to derive this model from a seven equation, two pressure, two velocity model of Baer–Nunziato type using an asymptotic analysis in the limit of zero relaxation time. We then study the mathematical properties of the system, the structure of the waves...

Phase Change Simulation for Isothermal Compressible Two-Phase Flows

Conservative Hyperbolic Model for Compressible Two-phase Flow with Different Phase Pressures and Temperatures

A model for two-phase compressible flow is presented, the derivation of which is based on extended irreversible thermodynamics principles. An isentropic two-phase flow model proposed earlier and the hyperbolic model for heat transfer underlie the developed theory of this paper. The governing equations of the model form a hyperbolic system of differential equations in conservation-law form. A se...

Development of a phase change model for volume-of-fluid method in OpenFOAM

In this present study, volume of fluid method in OpenFOAM open source CFD package will be extended to consider phase change phenomena with modified model due to condensation and boiling processes. This model is suitable for the case in which both unsaturated phase and saturated phase are present and for beginning boiling and condensation process needn't initial interface. Both phases (liquid-va...