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Transfert de chaleur et chute de pression dans un canal rectangulaire muni d'éléments en forme de losanges.

Heat transfer and pressure drop in a rectangular channel with diamond-shaped elements.

Auteurs : TANDA G.

Type d'article : Article

Résumé

Both in-line and staggered fin arrays were considered, for different values of the longitudinal and transverse spacings. The height-to-side ratio of the diamonds was 4.0. Liquid crystal thermography was used to determine the heat transfer coefficients on the surface of the channel (end wall) on which the fins were mounted. Local variations in heat transfer coefficients were measured and discussed. Correlations between Nusselt number and Reynolds number were developed. The presence of the diamond-shaped elements enhanced heat transfer by a factor of up to 4.4 for equal mass flow rate and by a factor of up to 1.65 for equal pumping power.

Détails

  • Titre original : Heat transfer and pressure drop in a rectangular channel with diamond-shaped elements.
  • Identifiant de la fiche : 2002-1777
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 44 - n. 18
  • Date d'édition : 09/2001

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