Partager

Etude numérique des caractéristiques de cavitation de l'hélium liquide en écoulement dans un tube.

Numerical study of the cavitating flow characteristics of liquid helium in a pipe.

Auteurs : ISHIMOTO J., KAMIJO K.

Type d'article : Article

Résumé

The fundamental characteristics of the two-dimensional cavitating flow of liquid helium in a vertical pipe near the lambda point are numerically investigated in order to achieve further development and high performance of new cryogenic superfluid cooling systems. It was found that the phase transition of the normal fluid to the superfluid and the generation of superfluid counterflow against normal fluid flow based on the thermomechanical effect is conspicuous in the large gas phase volume fraction region where the liquid to gas phase change with cavitation actively occurs. Furthermore, the mechanism of the He I to He II phase transition caused by the temperature decrease was demonstrated to be due to the deprivation of latent heat for vaporization from the liquid phase.

Détails

  • Titre original : Numerical study of the cavitating flow characteristics of liquid helium in a pipe.
  • Identifiant de la fiche : 2004-0479
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 1
  • Date d'édition : 01/2004

Liens


Voir d'autres articles du même numéro (2)
Voir la source

Indexation