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Titre :
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A critical heat flux correlation for droplet impact cooling
|
|
Auteurs :
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M. Sawyer ;
S. Jeter ;
Saïd.I. Abdel-khalik
|
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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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1997
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|
Format :
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p.2123-2131
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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
;
REFRIGERATION
;
TRANSFERT DE CHALEUR
;
FORCE D'IMPACT
;
EXPERIMENTATION
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Résumé :
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The characteristics of a single stream of monodispersed water droplets impacting a horizontal, upward facing flat surface have been investigated. The objective was to determine the effect of droplet diameter, impact frequency and impact velocity on the critical heat flux (CHF). A generalized correlation has been developed for the nondimensional CHF as a function of the Weber and Strouhal numbers of the impacting droplets. The Weber and Strouhal numbers ranged from 175 to 730 and 7.00 x 10(-3)-3.00 x 10(-2) respectively. With a confidence level of greater than 95% differences between predicted and experimental CHF values were less than +/-22%.
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Source :
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International journal of heat mass transfer, vol 40, n°9
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