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MODELING OF PHASE TRANSITION OF PARTIALLY MISCIBLE SOLVENT SYSTEMS: HYDRODYNAMICS AND HEAT TRANSFER PHENOMENA

卷 4, 册 5, 2012, pp. 387-398
DOI: 10.1615/ComputThermalScien.2012006019
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摘要

A numerical model for critical quench of binary mixtures in a two-dimensional (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 reformulated 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 nonequilibrium 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.

对本文的引用
  1. Ullmann Amos, Maevski Konstantin, Brauner Neima, Enhancement of forced and free convection heat transfer rates by inducing liquid–liquid phase separation of a partially-miscible equal-density binary liquid system, International Journal of Heat and Mass Transfer, 70, 2014. Crossref

  2. Califano Filomena, Mauri Roberto, Phase segregation of metastable quenched liquid mixtures and the effect of the quenching rate, Physics and Chemistry of Liquids, 57, 2, 2019. Crossref

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