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Document IIF

Modèle à deux fluides modifié pour les rideaux d'air des meubles frigorifiques de vente verticaux.

Modified two-fluid model for air curtains in open vertical display cabinets.

Auteurs : YU K. Z., DING G. L., CHEN T. J.

Type d'article : Article, Article de la RIF

Résumé

A modified two-fluid turbulence model is established to simulate the flow and heat transfer characteristics of air curtains in an open vertical display cabinet. The air exiting the back panel, the inner air curtain and the outer air curtain are taken as the first fluid and described with the standard k-E turbulence model (KE). The air outside the display cabinet is considered as the second fluid and calculated by the laminar model. Different from the existing two-fluid model, the mass transfer rate equation between the turbulent and the non-turbulent fluids is modified, and the face coefficient of honeycomb (the ratio of the effective area to the total area of honeycomb) is fetched with the volume fraction of air curtain in order to conveniently depict the blow characteristics of the honeycomb. The comparisons between the simulated temperatures and the experimental ones indicate that the modified two-fluid model can give better agreement with the measurements than KE and two original two-fluid models (TF1 and TF2).

Documents disponibles

Format PDF

Pages : 472-482

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Modified two-fluid model for air curtains in open vertical display cabinets.
  • Identifiant de la fiche : 2008-0675
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 31 - n. 3
  • Date d'édition : 05/2008

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