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Titre :
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Numerical study of an unsteady confined jet. Application to crossflow filtration
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Auteurs :
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C. Maranges ;
G. Arroyo ;
C. Fonade ;
AL Et
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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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1996
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Format :
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p.74-80
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Langues :
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= Anglais
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Catégories :
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THERMIQUE THERMODYNAMIQUE
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Mots-clés :
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JET
;
FILTRATION
;
METHODE AUX DIFFERENCES FINIES
;
VITESSE D'ECOULEMENT
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Résumé :
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This paper deals with the influence of a new flow unsteadiness on the permeate flux in crossflow filtration. A pneumatically controlled valve generates intermittent jets from the main flow, leading to the formation of large vortices moving downstream along the tubular membrane. A numerical calculation of this flow is achieved using a finite difference scheme. Influences of tube diameter and jet velocities are discussed. Application of this technique is carried out by filtering a bentonite suspension through an ultrafiltration membrane.
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Source :
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Journal of fluids engineering, vol 118, n°3
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