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Formes optimales pour les ailettes de refroidissement à conductivité élevée et faible.

Optimal shape profiles for cooling fins of high and low conductivity.

Auteurs : BOBARU F., RACHAKONDA S.

Type d'article : Article

Résumé

The authors present a numerical approach able to capture the dependence of the optimal shape profiles of thermal fins on the conductivity parameters. They consider the two-dimensional cross-section of a periodic array of fins and involve the third dimension via the thermal boundary layer. The highly conductive fins converge to "sharp-pointed", narrow base shapes while the low conductivity ones prefer blunted, wide base fins. The optimal shapes obtained are similar to the shapes of intestinal villi and stegosaurus plates. A mesh-free method, coupled with a gradient-based optimization algorithm, was used to handle the significant shape changes from a simple, generic initial guess to the final, optimal shape. The authors reached the optimal shapes without remeshing.

Détails

  • Titre original : Optimal shape profiles for cooling fins of high and low conductivity.
  • Identifiant de la fiche : 2005-1162
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 23
  • Date d'édition : 11/2004

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