Segregation in multicomponent mixtures under gravity: The bi-velocity method

Bartek Wierzba and Marek Danielewski

Physica A: Statistical Mechanics and its Applications, 2011, vol. 390, issue 12, 2325-2332

Abstract: The bi-velocity concept of separation of diffusion and drift flows allows one to combine the convection and dissipative contributions to the mass and energy fluxes. It is shown that the bi-velocity method combined with statements of the first law of thermodynamics and the Euler’s and Liouville theorems is consistent with linear irreversible thermodynamics. We apply the derived formalism in modeling the two-dimensional sedimentation between Bi and Sb and demonstrate the satisfactory agreement with experimental data. The method allows modeling the sedimentation of isotopes in solids.

Keywords: Linear irreversible thermodynamics; Interdiffusion; Mechano-chemistry, volume continuity equation (search for similar items in EconPapers)
Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:390:y:2011:i:12:p:2325-2332

DOI: 10.1016/j.physa.2011.02.047

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