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Etude photographique du comportement des bulles lors de l'ébullition de la convection forcée sous-refroidie.

Photographic study of bubble behaviour in forced convection subcooled boiling.

Auteurs : SITU R., MI Y., ISHII M., et al.

Type d'article : Article

Résumé

Forced convection subcooled water boiling experiments were conducted in a vertical annular channel. A high-speed digital video camera was applied to record the dynamics of the subcooled boiling process. The flow visualization results show that the bubble departure frequency generally increases as the heat flux increases. For some cases, the departure frequency may reach a limit around 1000 bubbles/s. In addition, bubble lift-off diameter, bubble growth rate and bubble velocity after bubble lift-off were determined by analysing the images. The experimental data obtained from this study can be used in modelling the bubble departure frequency, bubble lift-off diameter, and bubble dynamics in forced convection subcooled boiling.

Détails

  • Titre original : Photographic study of bubble behaviour in forced convection subcooled boiling.
  • Identifiant de la fiche : 2005-0605
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 17-18
  • Date d'édition : 08/2004

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