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Titre :
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Augmentation of convective heat transfer by an effective utilization of droplet inertia
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Titre original:
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Augmentation du transfert de chaleur convectif par l'utilisation de l'inertie de goutte
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Auteurs :
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K. Hishida ;
T. Nagayasu ;
M. Maeda
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Type de document :
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article/chapitre/communication
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Année de publication :
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1995
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Format :
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p.1773-1785
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Langues:
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= Anglais
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Catégories :
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SCIENCES FONDAMENTALES ET APPLIQUEES
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Mots-clés:
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GOUTTE
;
TRANSFERT DE CHALEUR
;
SIMULATION
;
MODELE NUMERIQUE
;
COEFFICIENT DE TRANSFERT DE CHALEUR
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Résumé :
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Flow characteristics and heat transfer of a water droplets laden flow behind a backward-facing step have been experimentally and numerically investigated for the condition of isothermally heated dry wall. Numerical simulations were performed by a standard model for the gas phase and a Langrangian stochastic model for the trajectories of droplets. The experimental and numerical results showed that large heat transfer enhancement existed downstream of the reattachment region and was correlated well with the ratio of time scale between an appropriate time scale of the turbulent flow and the relaxation time of droplet.
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Source :
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International journal of heat and mass transfer, vol 38, n°10
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