Blar i Institutt for energi og prosessteknikk på tidsskrift "Entropy"

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    • Casimir friction between dense polarizable media 

      Høye, Johan Skule; Brevik, Iver Håkon (Peer reviewed; Journal article, 2013)
      The present paper—a continuation of our recent series of papers on Casimir friction for a pair of particles at low relative particle velocity—extends the analysis, so as to include dense media. The situation becomes, in ...

    • Fractal-Like Flow-Fields with Minimum Entropy Production for Polymer Electrolyte Membrane Fuel Cells 

      Kizilova, Nataliya; Sauermoser, Marco; Kjelstrup, Signe; Pollet, Bruno (Journal article; Peer reviewed, 2020)

    • General bulk-viscous solutions and estimates of bulk viscosity in the cosmic fluid 

      Normann, Ben David; Brevik, Iver Håkon (Journal article; Peer reviewed, 2016)
      We derive a general formalism for bulk viscous solutions of the energy-conservation equation for ρ(a,ζ) ρ(a,ζ) , both for a single-component and a multicomponent fluid in the Friedmann universe. For our purposes, these ...

    • Viscosity in modified gravity 

      Brevik, Iver Håkon (Journal article; Peer reviewed, 2012)
      A bulk viscosity is introduced in the formalism of modified gravity. It is shown that, based on a natural scaling law for the viscosity, a simple solution can be found for quantities such as the Hubble parameter and the ...

    • Viscosity-Induced Crossing of the Phantom Barrier 

      Brevik, Iver Håkon (Journal article; Peer reviewed, 2015)
      We show explicitly, by using astrophysical data plus reasonable assumptions for the bulk viscosity in the cosmic fluid, how the magnitude of this viscosity may be high enough to drive the fluid from its position in the ...