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Transfert de chaleur et chute de pression pour un écoulement turbulent à faible nombre de Reynolds dans des tubes à alvéoles en hélice.

Heat transfer and pressure drop for low Reynolds turbulent flow in helically dimpled tubes.

Auteurs : VICENTE P. G., GARCÍA A., VIEDMA A.

Type d'article : Article

Résumé

Three-dimensional helically dimpled tubes have been experimentally studied in order to obtain their heat transfer and isothermal friction characteristics. Using water and ethylene glycol as test fluids, a wide range of fluid flow conditions was covered. An experimental study of 10 different tubes offers insight into the influence of manufacturing parameters on tube thermohydraulic behaviour. Data have been correlated so as to obtain easy to use expressions for Fanning friction factors and Nusselt numbers as functions of flow and geometry non-dimensional parameters. Performances of these tubes are presented.

Détails

  • Titre original : Heat transfer and pressure drop for low Reynolds turbulent flow in helically dimpled tubes.
  • Identifiant de la fiche : 2002-2262
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 45 - n. 3
  • Date d'édition : 01/2002

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