Numerical Study of Non-Linear Wave Interactions in Bubbly Two-Phase Flow

摘要

Recently variational methods were applied for the systematic derivation of two-phase flow equations governing the inviscid dynamic behavior of bubbly liquid/gas mixtures. The corresponding equations, which possess real characteristics at marginal stability, are investigated here with respect to their suitability for producing stable and reliable numerical results. The applied numerical method is based on a scheme introduced by Lerat. The interaction of acoustic waves and non-linear concentration waves is used as a test case. The principal results of the report will be presented at the XVIIth International Congress of Theoretical and Applied Mechanics to be held at Grenoble, August 21-27, 1988. (Copyright (c) 1988 by Faculty of Technical Mathematics and Informatics, Delft, The Netherlands.)