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Amélioration du transfert de chaleur à l'aide de nervures.

On enhancement of heat transfer with ribs.

Auteurs : ONBASIOGLU S. U., ONBASIOGLU H.

Type d'article : Article

Résumé

A liquid crystal based experimental investigation of the heat transfer enhancement supplied by ribs on a vertical plate, is presented. Adiabatic ribs, which did not work as extended heat transfer surfaces but by redirecting the flow, were used to enhance the heat transfer. Local heat transfer coefficients and the mean Nusselt numbers for the considered experimental cases are compared to those of the flat plate without ribs. The enhanced flow is always found to have higher heat transfer values. On the other hand, both the rib height and the angle of inclination affect the magnitude of the local and total heat transfer coefficients. Three-dimensional numerical simulations of the natural convection flow along a vertical plate with ribs were performed. A reasonable agreement appears to exist between measured and predicted local and mean quantities.

Détails

  • Titre original : On enhancement of heat transfer with ribs.
  • Identifiant de la fiche : 2004-1607
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 24 - n. 1
  • Date d'édition : 01/2004

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