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Transfert de chaleur par convection forcée d'un cylindre circulaire à écoulement croisé vers l'air et les liquides.

Forced convection heat transfer from a circular cylinder in crossflow to air and liquids.

Auteurs : SANITJAI S., GOLDSTEIN R. J.

Type d'article : Article

Résumé

Local and average heat transfer by forced convection from a circular cylinder was studied for Reynolds number and Prandtl number. For subcritical flow, the local heat transfer measurement indicates three regions of flow around the cylinder: laminar boundary layer region, reattachment of shear layer region and periodic vortex flow region. The average heat transfer in each region is calculated and correlated with the Reynolds number and the Prandtl number. The Nusselt number in each region strongly depends on the Reynolds number and the Prandtl number with different power indices. An empirical correlation for predicting the overall heat transfer from the cylinder is developed from the contributions of heat transfer in these three regions.

Détails

  • Titre original : Forced convection heat transfer from a circular cylinder in crossflow to air and liquids.
  • Identifiant de la fiche : 2005-0635
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 22
  • Date d'édition : 10/2004

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