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Document IIF

Caractérisation de la neige produite en soufflerie climatique.

Auteurs : BOISSON-KOUZNETZOFF S., PALIER P.

Type d'article : Article, Article de la RIF

Résumé

Using the experimental devices of the Jules Verne climatic wind tunnel, it is possible to make snow that has a specified liquid water content. Measurements of the density of the snow mantle and of the shape and size of the snow grains show that the snow produced is equivalent to View the MathML source-day-old natural snow or snow drifted by wind. This paper describes a theoretical model of the snow-making process. The model describes the injection of a high pressure water/air mixture with “snow guns” into low-temperature ambient air. This model uses the Goertler theory for the air jet, the classic ballistic laws for the water droplets and the heat and mass transfer laws in forced convection and evaporation for the freezing mechanisms of the water droplets. This model provides good agreement between the flying time and the freezing time of the water droplets within certain limitations. The variation of the liquid water content as a function of the distance from the snow gun is also well described.

Documents disponibles

Format PDF

Pages : 302-324

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

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

Détails

  • Titre original : Caractérisation de la neige produite en soufflerie climatique.
  • Identifiant de la fiche : 30001903
  • Langues : Français
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 24 - n. 4
  • Date d'édition : 06/2001

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