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Analyse des ondes d'expansion apparaissant dans les orifices des tuyères à écoulement diphasique.

Analysis of expansion waves appearing in the outlets of two-phase flow nozzles.

Auteurs : NAKAGAWA M., HARADA A., BERANA M. S.

Résumé

Two-phase flow nozzles are used in the total flow systems of geothermal power plants and in the ejector refrigeration cycle. The purpose of this study is to theoretically elucidate the characteristics of expansion waves at the outlets of supersonic wo-phase-flow nozzles. Two-dimensional basic equations for compressible two-phase flow were derived by incorporating the equation of inter-phase momentum transfer into equations of gas dynamics. In this study, the theoretical analyses were carried out by focusing on momentum-relaxation phenomena in high-speed mist flow. Expansion waves occurring right after two-phase flow nozzles were calculated by using the CIP method. The calculated expansion curves were compared with the experimentally obtained ones. The shape of the calculated ones closely resembled the shape of the experimentally obtained ones.

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  • Prix public

    20 €

  • Prix membre*

    15 €

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Analysis of expansion waves appearing in the outlets of two-phase flow nozzles.
  • Identifiant de la fiche : 2009-0516
  • Langues : Anglais
  • Source : 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Date d'édition : 14/07/2008

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