Partager

Refroidissement tridimensionnel par convection à l'intérieur d'un canal vertical à sources de chaleur affleurantes.

Three-dimensional convective cooling in a vertical channel with flush-mounted heat sources.

Auteurs : GUNES H., LIAKOPOULOS A.

Type d'article : Article

Résumé

Three-dimensional free convection in a vertical channel with spatially periodic, flush-mounted heat sources was investigated using a spectral element method. All numerical solutions were obtained using a time-accurate finite-difference integration scheme capable of capturing temporal instabilities that spontaneously appear at large values of Grashof number, Gr. In addition, the leading order approximation of the 3-D solution for small Gr was derived and compared with the numerical solutions. The agreement was excellent for sufficiently small Gr. Temperature and velocity distributions as well as maximum temperature, maximum velocity and local Nusselt number distributions are presented for the Grashof number values studied. For time-dependent flows, instantaneous as well as averaged-over-time solutions are discussed.

Détails

  • Titre original : Three-dimensional convective cooling in a vertical channel with flush-mounted heat sources.
  • Identifiant de la fiche : 2003-1721
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 5
  • Date d'édition : 02/2003

Liens


Voir d'autres articles du même numéro (4)
Voir la source

Indexation