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Calcul de l'écoulement turbulent et du transfert de chaleur à l'intérieur d'un canal à chicanes poreuses.

Calculation of turbulent flow and heat transfer in a porous-baffled channel.

Auteurs : YANG Y. T., HWANG C. Z.

Type d'article : Article

Résumé

This study presents numerical predictions on the turbulent fluid flow and heat transfer characteristics of rectangular channels with porous baffles arranged on the top and bottom channel walls in a periodically staggered way. The turbulent governing equations are solved by a control volume-based finite difference method with power-law scheme and the k-turbulence model associated with wall function to describe the turbulent structure. The velocity and pressure terms of momentum equations are solved by the SIMPLE (semi-implicit method for pressure-linked equation) method. The parameters studied include the entrance Reynolds number Re (1×104-5×104), the baffle height (h = 10, 20 or 30 mm) and the type of baffles (solid and porous); the baffle spacing S/H is fixed at 1.0 and the working medium is air.

Détails

  • Titre original : Calculation of turbulent flow and heat transfer in a porous-baffled channel.
  • Identifiant de la fiche : 2003-1709
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 5
  • Date d'édition : 02/2003

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