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Interface model for non-equilibrium evaporation

Author

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  • Caputa, J.P.
  • Struchtrup, Henning

Abstract

A microscopic interface condition for condensing/evaporating interfaces is developed by combining a velocity dependent condensation probability [T. Tsuruta, H. Tanaka, T. Masuoka, Int. J. Heat Mass Transfer 42 (1999) 4107] and Maxwell type interface conditions with accommodation. Using methods from kinetic theory, macroscopic interface conditions for mass and energy transport across the phase boundary are derived. This model only applies to simple substances, where diffusive effects in the bulk phases are not present. The results are compared to classical non-equilibrium thermodynamics. The interface conditions are considered for the limit of small deviation from equilibrium, and the corresponding Onsager coefficients are computed. These results are useful as boundary conditions for non-equilibrium evaporation and condensation problems, as done previously by our group [M. Bond, H. Struchtrup, Phys. Rev. E 70 (2004) 061605].

Suggested Citation

  • Caputa, J.P. & Struchtrup, Henning, 2011. "Interface model for non-equilibrium evaporation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 390(1), pages 31-42.
  • Handle: RePEc:eee:phsmap:v:390:y:2011:i:1:p:31-42
    DOI: 10.1016/j.physa.2010.09.019
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    Cited by:

    1. Jöns, Steven & Munz, Claus-Dieter, 2023. "Riemann solvers for phase transition in a compressible sharp-interface method," Applied Mathematics and Computation, Elsevier, vol. 440(C).

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