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Nonstationary contributions to the bulk viscosity and other transport coefficients

par Nicolis, Grégoire ;Severne, Georges
Référence The Journal of Chemical Physics, 44, 4, page (1477-1486)
Publication Publié, 1966

Article révisé par les pairs

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Résumé :

The nonstationary contributions to the transport coefficients, i.e., those associated with the term ∂f/∂t in the kinetic equations, are analyzed within the framework of the Prigogine theory. These contributions, which more especially concern the bulk-viscosity coefficient, are shown to combine with the stationary contributions to yield a result equivalent to that provided by autocorrelation function theory; this completes Résibois' proof of the equivalence of the kinetic and autocorrelation function methods. The connection with the finite frequency approach is also established. Finally, some comments are made on the definition of temperature in nonequilibrium systems, a matter which is in direct connection with the evaluation of the bulk-viscosity coefficient.