Multiphase Flows

Multiphase Flows

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  3. Eulerian Wall Film (EWF) is not created even though all settings concerning DPM injection and collection, and film initial or boundary conditions at walls are properly set

Eulerian Wall Film (EWF) is not created even though all settings concerning DPM injection and collection, and film initial or boundary conditions at walls are properly set

Tagged: 16, eulerian-wall-film, fluent, fluid-dynamics, MP - Eulerian MP Flow, multiphase
    • January 25, 2023 at 7:17 am
      FAQFAQ
      Participant

      We have to ensure that the minimum film thickness (defined in the ‘Solution Method and Control’ tab of the EWF model) is smaller than the initial film thickness defined on the wall boundaries, and any of the film thicknesses expected during the calculation. If the minimum film thickness is defined too high in these regards, then the max_cfl value for the film will report a value of 0 and the film temperature and velocity will assume the wall properties. A good habit besides that is to define a separate material for the DPM material such like we will have for instance water-liquid for the secondary phase and water-liquid-particle for the discrete phase particle.

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