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Convection naturelle en régime transitoire et transitions conjuguées autour d'une source de chaleur linéaire.

Transient natural convection and conjugate transients around a line heat source.

Auteurs : DULUC M. C., XIN S., LE QUÉRÉ P.

Type d'article : Article

Résumé

The transient natural convection in liquid nitrogen around a heated wire was studied experimentally and numerically. A thin bronze wire of 40 µm in diameter and 5.1 cm in length heated by Joule effect was used in experiments and the evolution of the wire temperature over time was measured through its electrical resistance. Numerical simulations of such flows were performed by using velocity-pressure formulation, spectral methods and the domain decomposition technique. Experimental data and numerical results were compared and showed that although the wire was extremely thin, its thermal inertia played an important role during early transients.

Détails

  • Titre original : Transient natural convection and conjugate transients around a line heat source.
  • Identifiant de la fiche : 2003-1177
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 2
  • Date d'édition : 01/2003

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