Numerical Coupling of Two-Phase Flows

We present numerical methods to simulate a two-phase flow that is described by a Homogeneous Equilibrium Model on the left of a fictious fixed interface and by a Homogeneous Relaxation Model on the right of it. No a priori information at the coupling interface is provided for the flow. Such a problem appears in industrial simulation platforms, where different codes are used to treat specific sub-domains of complex systems. We propose several coupling techniques that allow to efficiently simulate the flow which fulfill a set of physical constraints that must be imposed at the interface.