J. Phys. IV France 10 (2000) Pr5-191-Pr5-194
Coupling of transport and thermodynamic properties of nonideal multicomponent matterG. Pavlov
Institute of Problems of Chemical Physics, Russian Academy of Science, Chernogolovka, 142432 Moscow Region, Russia
The general relations between thermophysical properties of non-ideal matter are investigated to check the approximations for the calculation of the properties in the linear response case. In particular for the examination of the approach which is proposed for the full set of the transport coefficients, determining currents of pulse, heat, mass and charge in high energy density matter with strong interparticle interactions and chemical reactions. To do this the detailed analysis has been carried out of available experimental data of non-ideal matter transport coefficients of various substances. The effective transport coefficients (these coefficients first of all couple the thermodynamic and transport properties of a non-ideal matter) are introduced, relating the mass currents of chemical elements and the convective heat current to temperature and element concentrations gradients and the effective fields in a matter. The number of conditions imposed on the nonlinear, nondiagonal matrix of the effective transport coefficients and on the high derivative coefficients matrix of the set of conservation equations for a non-ideal medium are derived. The properties of these matrixes are the next result of coupling of transport and thermodynamic properties of a matter. It is considered also the relations between transport and thermodynamic properties of matter in the case of a nonlinear response. At last the coupling is studied for a system under the plasma phase transition within the framework of Cahn-Hilliard approach.
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