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Etude numérique sur la convection naturelle à l'intérieur d'une enceinte ondulée.

Numerical investigation of natural convection inside a wavy enclosure.

Auteurs : DAS P. K., MAHMUD S.

Type d'article : Article

Résumé

In the paper, hydrodynamic and thermal behaviours of fluid inside a wavy walled enclosure are investigated. The enclosure consists of two wavy and two straight walls. The top and the bottom walls are wavy and kept isothermal. Two vertical straight walls (right and left) are considered adiabatic. The integral forms of the governing equations are solved numerically using Finite Volume method. Computational domains are divided into finite numbers of body fitted control volumes with collocated variable arrangement. Results are presented in the form of local and global Nusselt number distributions for a selected range of Grashof number. Streamlines and isothermal lines are also presented for four different values (0.0, 0.05, 0.1, 0.15) of amplitude-wavelength ratios and for a fluid having Prandtl number 1.0. Throughout the study, aspect ratio is kept equal to 0.40. Calculated results for Nusselt number are compared with the available references.

Détails

  • Titre original : Numerical investigation of natural convection inside a wavy enclosure.
  • Identifiant de la fiche : 2005-0078
  • Langues : Anglais
  • Source : International Journal of thermal Sciences - vol. 42 - n. 4
  • Date d'édition : 04/2003

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