RT Journal Article ID 4dfec3491abe8ee6 A1 Yam, Ke San A1 Bourdillon, Arnaud A1 Sawko, Robert A1 Thompson, Chris T1 MODELLING SOLIDIFICATION OF BINARY MIXTURES IN CAVITY AND CHANNEL FLOWS JF Computational Thermal Sciences: An International Journal JO CTS YR 2019 FD 2018-11-20 VO 11 IS 3 SP 219 OP 232 K1 binary mixture freezing K1 cavity K1 channels K1 mixture model K1 CFD approach AB This work presents a numerical study on predicting the freezing processes of a binary mixture using the computational fluid dynamics (CFD) code OpenFoam 2.3.0. The aim is to develop a model that can predict the freezing of brine in a channel flow. A mixture model was implemented into the CFD code and the model validation was performed comparing against the results of Christenson and Incropera [Int. J. Heat Mass Transfer, vol. 32, no. 1, pp. 47–68, 1989] in predicting the freezing of a brine solution in a differentially heated cavity. The model successfully predicts the multiple double-diffusion layers within the liquid zone and formation of liquid pockets within the mushy zones, which agree with the experiment. On the other hand, slight discrepancies were perceived for the comparison on the liquidus and solidus fronts. The inertial and unsteady effects in the mushy zone were investigated in an effort to improve these differences, but they were found to be insignificant. The validated model was applied to predict the freezing of brine in a channel flow. The model successfully predicts the formation of pure water due to the salt being ejected into the liquid zone. PB Begell House LK https://www.dl.begellhouse.com/journals/648192910890cd0e,6a05a6167690f470,4dfec3491abe8ee6.html