NUMERICAL-SIMULATION OF MULTIDIMENSIONAL 2-PHASE FLOW BASED ON FLUX VECTOR SPLITTING

This paper describes a new approach to the numerical simulation of tra nsient, multidimensional two-phase flow. The development is based on a fully hyperbolic two fluid model of two-phase flow using separated co nservation equations for the two phases. Features of the new model inc lude the existence of real eigenvalues, and a complete set of independ ent eigenvectors which can be expressed algebraically in terms of the major dependent flow parameters. This facilitates the application of n umerical techniques specifically developed for high speed single-phase gas flows which combine signal propagation along characteristic lines with the conservation property with respect to mass, momentum and ene rgy. Advantages of the new model for the numerical simulation of 1- an d 2-dimensional two-phase flow are discussed. (C) 1997 Elsevier Scienc e S.A.