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Simulation numérique d’un film liquide ondulé s‘écoulant le long d’une paroi poreuse inclinée.

Numerical simulation of wavy liquid film flowing along inclined porous wall.

Numéro : AB-YR1-1162

Auteurs : HASANUZZAMAN M., MIYARA A.

Résumé

Interfacial wave behavior and flow characteristics of falling liquid films on an inclined porous wall have been studied by means of a numerical simulation. Basic equations are discretized on a staggered grid fixed on a physical space. Using the Navier-Stokes and Darcy-Brinkman equations in the film and porous layer, respectively, the problem is reduced to study of the evolution equation for the free surface of the liquid film derived through a long-wave approximation. Interfacial boundary conditions are treated with an originally proposed method and the wave behavior can be calculated accurately. Small artificial perturbations given at the inflow boundary grow rapidly and then the amplitude of the waves approaches to developed waves. Calculations have been performed in the wide range of physical parameters, in particular for inclined porous wall.

Détails

  • Titre original : Numerical simulation of wavy liquid film flowing along inclined porous wall.
  • Identifiant de la fiche : 30022771
  • Langues : Anglais
  • Source : International sorption heat pump conference, ISHPC 2017, Tokyo august 7-10.
  • Date d'édition : 07/08/2017

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