Extra Mass Flux in Fluid Mechanics

P. Ván, Michal Pavelka, Miroslav Grmela

Research output: Contribution to journalArticle

8 Citations (Scopus)


The conditions of existence of extra mass flux in single-component dissipative nonrelativistic fluids are clarified. By considering Galilean invariance, we show that if total mass flux is equal to total momentum density, then mass, momentum, angular momentum and booster (center of mass) are conserved. However, these conservation laws may be fulfilled also by other means. We show an example of weakly nonlocal hydrodynamics where the conservation laws are satisfied as well although the total mass flux is different from momentum density.

Original languageEnglish
Pages (from-to)133-151
Number of pages19
JournalJournal of Non-Equilibrium Thermodynamics
Issue number2
Publication statusPublished - Apr 1 2017


  • extra mass flux
  • fluid dynamics
  • Galilean invariance
  • Hamiltonian
  • nonlocality

ASJC Scopus subject areas

  • Chemistry(all)
  • Physics and Astronomy(all)

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