TY - GEN
T1 - Modeling of phase transition of partially miscible solvent systems
T2 - International Symposium on Advances in Computational Heat Transfer, CHT 2012
AU - Segal, Vered
AU - Ullmann, Amos
AU - Brauner, Neima
N1 - Publisher Copyright:
© 2012, Begell House Inc. All rights reserved.
PY - 2012
Y1 - 2012
N2 - A numerical model for critical quench of binary mixtures in a 2D geometry is developed, whereby two opposite walls are cooled below the critical temperature. The model equations for the conservation of mass, momentum and energy are derived according to the diffuse interface approach. The energy equation has been re-formulated to identify the heat source term which is associated with liquid-liquid phase separation. The numerical tool is used for simulating the separation process and to obtain the velocity, concentration and temperature fields. The 2D simulation enables the analysis of the evolving velocity field induced by the non-equilibrium Korteweg force. The numerical model developed can be further used for the analysis of the convective heat transfer phenomena. This convective motion is believed to be responsible for the heat transfer rate enhancement observed in the experiments during non-isothermal phase separation.
AB - A numerical model for critical quench of binary mixtures in a 2D geometry is developed, whereby two opposite walls are cooled below the critical temperature. The model equations for the conservation of mass, momentum and energy are derived according to the diffuse interface approach. The energy equation has been re-formulated to identify the heat source term which is associated with liquid-liquid phase separation. The numerical tool is used for simulating the separation process and to obtain the velocity, concentration and temperature fields. The 2D simulation enables the analysis of the evolving velocity field induced by the non-equilibrium Korteweg force. The numerical model developed can be further used for the analysis of the convective heat transfer phenomena. This convective motion is believed to be responsible for the heat transfer rate enhancement observed in the experiments during non-isothermal phase separation.
UR - http://www.scopus.com/inward/record.url?scp=85066257018&partnerID=8YFLogxK
U2 - 10.1615/ICHMT.2012.CHT-12.680
DO - 10.1615/ICHMT.2012.CHT-12.680
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AN - SCOPUS:85066257018
SN - 9781567003031
T3 - International Symposium on Advances in Computational Heat Transfer
SP - 1109
EP - 1122
BT - Proceedings of CHT-12. ICHMT International Symposium on Advances in Computational Heat Transfer, 2012
PB - Begell House Inc.
Y2 - 1 July 2012 through 6 July 2012
ER -