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Document IIF

Caractérisation de l'écoulement diphasique dans un canal corrugué.

Two-phase flow characteristics of a corrugated channel.

Auteurs : WINKELMANN D., THONON B., AURACHER H., et al.

Résumé

This paper deals with two-phase air-water downflow in the corrugated channels commonly found in plate and frame heat exchangers. The flow channel consists of a transparent plastic plate to allow observation of the two-phase flow pattern and a regular steel plate. The Lockhart-Martinelli concept of the two-phase multiplier is used for pressure drop data reduction and the relationship between the multiplier and Lockhart-Martinelli parameter is correlated using a Chisholm-type equation. The void fraction is expressed as a function of the two phase multiplier and linked to the geometry dependence of the Chisholm correlation parameter. Furthermore a preliminary flow regime chart is proposed.

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Détails

  • Titre original : Two-phase flow characteristics of a corrugated channel.
  • Identifiant de la fiche : 2000-1250
  • Langues : Anglais
  • Source : 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
  • Date d'édition : 19/09/1999

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