Extended thermodynamics and the Jeffrey's constitutive equation

J. Camacho, David Jou

Research output: Contribution to journalArticleResearchpeer-review

7 Citations (Scopus)

Abstract

Extended irreversible thermodynamics provides an evolution equation for the viscous pressure tensor which reduces to the Jeffrey's constitutive equation in the long-wave limit. in contrast with Jeffrey's equation, the equation obtained in extended irreversible thermodynamics leads to finite speed of propagation for shear pulses. The nonlocal effects are included into the theory by allowing the entropy to depend on higher-order fluxes, instead of spatial gradients. The use of the former ones is clearly advantageous in the high-frequency domain. © 1991 Steinkopff-Verlag.
Original languageEnglish
Pages (from-to)226-229
JournalRheologica Acta
Volume30
DOIs
Publication statusPublished - 1 May 1991

Keywords

  • Jeffrey's constitutive equations
  • Nonequilibrium thermodynamics
  • entropy
  • non-local effects
  • shear waves

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