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Caractéristiques supersoniques et ondes de choc dans un courant diphasique le long de la tuyère d'un éjecteur de dioxyde de carbone.

Supersonic characteristics and shock waves in two-phase flow along a nozzle of a carbon dioxide ejector.

Auteurs : NAKAGAWA M., TAKEUCHI H., BERANA M. S.

Résumé

The main objectives of the study are to elucidate the types of shock waves that appear in the nozzle of an ejector of a CO2 refrigeration cycle and the phenomena of these shock waves in two-phase flow of CO2. Blow down tests of CO2 through converging-diverging nozzles were carried out. Two types of shock waves are observed. One type is dispersed and the other has a gradually increasing pressure. The prediction of shock waves was conducted by integrating the basic equation of saturated two-phase flow. Two different types of shock waves are shown according to their different relaxation times.

Détails

  • Titre original : Supersonic characteristics and shock waves in two-phase flow along a nozzle of a carbon dioxide ejector.
  • Identifiant de la fiche : 2007-0193
  • Langues : Anglais
  • Source : ACRA-2006. Proceedings of the 3rd Asian conference on refrigeration and air conditioning.
  • Date d'édition : 21/05/2006

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