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Two-Phase Fluid Subjected To Terrestrial Or Space Conditions: A Lattice Boltzmann Study

Author

Listed:
  • VICTOR SOFONEA

    (Research Center for Hydrodynamics, Cavitation and Magnetic Fluids, "Politehnica" University of Timişoara, Bd. Mihai Viteazul 1, R–1900 Timişoara, Romania)

Abstract

A lattice Boltzmann model for two-phase fluids is used to find the equilibrium distribution of density and pressure across a vertical column under the action of terrestrial gravitational field. At low temperatures and without surface tension, the density distribution has a discontinuity point due to phase separation, while the pressure is always continuous. At temperatures far above the critical point, the fluid column behaves as an ideal gas and the well-known barometric formula is recovered. When surface tension is considered, this model gives also the correct behavior of a Van der Waals fluid placed in a tank subjected to terrestrial or space conditions in both cases, when the tank walls are wetted or not by the fluid.

Suggested Citation

  • Victor Sofonea, 1996. "Two-Phase Fluid Subjected To Terrestrial Or Space Conditions: A Lattice Boltzmann Study," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 7(05), pages 695-704.
    • Handle: RePEc:wsi:ijmpcx:v:07:y:1996:i:05:n:s0129183196000570
    DOI: 10.1142/S0129183196000570
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