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Analyse de la génération d'entropie à travers une gaine circulaire avec différentes ailettes longitudinales pour l'écoulement laminaire.

An analysis of entropy generation through a circular duct with different shaped longitudinal fins for laminar flow.

Auteurs : DAGTEKIN I., ÖZTOP H. F., SAHIN A. Z.

Type d'article : Article

Résumé

This article focuses on the entropy generation analysis in a circular duct with internal longitudinal fins of different shapes for laminar flow. Three different fin shapes were chosen for the analysis: thin, triangular and V-shaped. Calculations were performed for various dimensionless lengths and numbers of fins, dimensionless temperature difference and fin angle for triangular and V-shaped fins. It was found that the number of fins and dimensionless length of the fins for both thin fins and triangular fins, and the fin angle for triangular and V-shaped fins, have significant effects on both entropy generation and pumping power. Furthermore, both entropy generation and pumping power also are influenced by dimensionless temperature difference.

Détails

  • Titre original : An analysis of entropy generation through a circular duct with different shaped longitudinal fins for laminar flow.
  • Identifiant de la fiche : 2005-1733
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 48 - n. 1
  • Date d'édition : 01/2005

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