A splitting method for the isentropic Baer-Nunziato two-phase flow model

Publisher: Edp Sciences

E-ISSN: 1270-900x|38|issue|241-256

ISSN: 1270-900x

Source: ESAIM: Proceedings, Vol.38, Iss.issue, 2013-01, pp. : 241-256

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Abstract

In the present work, we propose a fractional step method for computing approximate solutions of the isentropic Baer-Nunziato two-phase flow model. The scheme relies on an operator splitting method corresponding to a separate treatment of fast propagation phenomena due to the acoustic waves on the one hand and slow propagation phenomena due to the fluid motion on the other. The scheme is proved to preserve positive values of the statistical fractions and densities. We also provide two test-cases that assess the convergence of the method.