Application of interface-tracking method into condensation simulation

Abstract

The phase-change, e.g. condensation, phenomena have been a hot issue in the field of gas-liquid two-phase flow researches. To predict the occurrence of phase-change phenomena accurately in gas-liquid two-phase flows, not only the advanced measurement techniques, but the credible CFD methods should be established. In this study, the authors propose a modified condensation simulation procedure based on an interface-tracking method, in consideration of interface advancement thorough a cell-boundary. The proposed simulation method is verified by solving the well-known Stefan problem to show the superiority to conventional methods. Then, the proposed method is employed to the simulation of a simple experiment of direct contact condensation phenomena to show the applicability to practical complicated condensation flows.