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Effet de la surchauffe sur le transfert de chaleur à partir d'un bon conducteur thermique vers le He II en dessous du point de pression lambda dans un canal bidimensionnel.

Effect of superheating on heat transfer from a good thermal conductor in a two-dimensional channel to He II below the lambda-point pressure.

Auteurs : KOBAYASHI H., TAKAHASHI M., ASHIMORI T., et al.

Type d'article : Article

Résumé

Heat transfer characteristics in He II have been investigated in relation to superheating. When a good thermal conductor in a narrow two-dimensional channel is heated above the critical heat flux of the lambda-transition, superheated He I nucleates in the hottest area of the conductor covered with superheated He II. The spread of superheated He I, which has a low thermal conductivity, forms an intermediate state in which superheated He I coexists with superheated He II. Superheated He I together with superheated He II is apparently stabilized since part of the heat cut off by superheated He I tends to flow in the conductor. Higher heat input turns the intermediate state into a mixed state where superheating and boiling alternate irregularly. [Reprinted with permission from Elsevier. Copyright, 2009].

Détails

  • Titre original : Effect of superheating on heat transfer from a good thermal conductor in a two-dimensional channel to He II below the lambda-point pressure.
  • Identifiant de la fiche : 2010-0690
  • Langues : Anglais
  • Source : Cryogenics - vol. 49 - n. 12
  • Date d'édition : 12/2009
  • DOI : http://dx.doi.org/10.1016/j.cryogenics.2009.07.007

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