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Kinetic models for diffusion generated by an external force

Author

Listed:
  • Marín, C.
  • Montanero, J.M.
  • Garzó, V.

Abstract

Two kinetic models are used to study the homogeneous color diffusion problem in a dilute binary mixture. Both kinetic models incorporate a temperature dependence in the collision frequencies, which allows for the consideration of a general repulsive molecular interaction. The main transport properties as well as the velocity distribution functions are explicitly obtaines in terms of the field strength and the parameters characterizing the mixture. The results are illustrated for the two extreme cases of Maxwell molecules and hard spheres. A comparison between both models and with previous results derived from the Boltzmann equation for Maxwell molecules is carried out.

Suggested Citation

  • Marín, C. & Montanero, J.M. & Garzó, V., 1996. "Kinetic models for diffusion generated by an external force," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 225(2), pages 235-253.
    • Handle: RePEc:eee:phsmap:v:225:y:1996:i:2:p:235-253
    DOI: 10.1016/0378-4371(95)00410-6
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