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Numerical Simulation Of Isothermal And Thermal Two-Phase Flows Using Phase-Field Modeling

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  • NAOKI TAKADA

    (National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1, Namiki, Tsukuba, Ibaraki 305-8564, Japan)

  • AKIO TOMIYAMA

    (Graduate School of Science and Technology, Kobe University, 1-1, Rokkodui-cho, Nada, Kobe, Hyogo 657-8501, Japan)

Abstract

For interface-tracking simulation of two-phase flows in various micro-fluidics devices, we examined the applicability of two versions of computational fluid dynamics method, NS-PFM, combining Navier-Stokes equations with phase-field modeling for interface based on the van der Waals-Cahn-Hilliard free-energy theory. Through the numerical simulations, the following major findings were obtained: (1) The first version of NS-PFM gives good predictions of interfacial shapes and motions in an incompressible, isothermal two-phase fluid with high density ratio on solid surface with heterogeneous wettability. (2) The second version successfully captures liquid-vapor motions with heat and mass transfer across interfaces in phase change of a non-ideal fluid around the critical point.

Suggested Citation

  • Naoki Takada & Akio Tomiyama, 2007. "Numerical Simulation Of Isothermal And Thermal Two-Phase Flows Using Phase-Field Modeling," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 18(04), pages 536-545.
    • Handle: RePEc:wsi:ijmpcx:v:18:y:2007:i:04:n:s0129183107010772
    DOI: 10.1142/S0129183107010772
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    References listed on IDEAS

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    1. Lewandowski, Witold M. & Radziemska, Ewa & Buzuk, Maciej & Bieszk, Henryk, 2000. "Free convection heat transfer and fluid flow above horizontal rectangular plates," Applied Energy, Elsevier, vol. 66(2), pages 177-197, June.
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