Behavior of liquid surface impinged by turbulent jets

Biń, A. K.

doi:10.1002/aic.690310820

Cited by 6 publications

(6 citation statements)

References 16 publications

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“…is a function only of eJ>A and the penetration depth H p , of the bubble as follows: eJ>u! = eJ>H;eJ>~ (4) In fact, the flow rate eJ>u1' can be considered as a function of the gas entrainment rate eJ>A' and the mean residence time r, of the entrained gas since the longer r is, the greater the flow rate eJ>v!, becomes. Therefore, we can give another function as follows:…”

Section: Mass Transfer Model Usedmentioning

confidence: 99%

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Oxygen Transfer in the Water-Jet Vessel

Funatsu

Hsu

Noda

et al. 1988

Chemical Engineering Communications

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This is an investigation of the gas holdup and the volumetric mass transfer coefficient of a plunging water jet in an air-water system. We sound kLa to be directly proportional to gas holdup in two regions. For the first time, this has been clarified in the plunging liquid jet system. The volumetric mass transfer coefficient and the gas holdup have been well correlated in terms of the Froude number, liquid jet length, nozzle diameter and vessel diameter.

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Section: Mass Transfer Model Usedmentioning

confidence: 99%

“…Most of these studies were on gas entrainment mechanisms [Bin 1985; Burgess et al 1972; Kumagai et al 1983 al. 1975].…”

Section: Introductionmentioning

confidence: 99%

Oxygen Transfer in the Water-Jet Vessel

Funatsu

Hsu

Noda

et al. 1988

Chemical Engineering Communications

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“…Under natural experimental conditions some deformation of the interface from a flat shape is observed in the impingement region due to an interaction of a turbulent submerged jet with a free liquid surface. The geometry of the bulge formed on the interface in this region is dependent on the jet momentum (Bin, 1985). However, an increase in the interfacial area is usually negligible, maximum 3% under typical experimental conditions, and is well within the experimental error of the mass transfer determinations.…”

Section: Velocity Distributionmentioning

confidence: 94%

Mass Transfer Into a Free Liquid Surface Effected by Submerged Jets

Biń

1995

Chemical Engineering Communications

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A theoretical and experimental analysis of mass transfer into a turbulent free liquid surface effected by submerged jets has been presented. Theoretical considerations concentrated on hydrodynamic characteristics of the system which enabled us to derive the radial velocity distribution in the surface jet flow. Some conclusions have been drawn from the two-parameter models of turbulence. The results of experimental measurements of the average mass transfer coefficients have been interpreted in terms of our own model of mass transfer accounting for eddy diffusivity. The model parameters were correlated with the basic hydrodynamic parameters of the system. Radial distributions of the local values of the mass transfer coefficients were estimated. The applicability of other models of mass transfer has also been verified. It has been shown that the model presented here is the most general and applicable for interpretation of the experimental data obtained when studying the system under consideration KEYWORDS Mass transfer liquid jets free liquid surface.

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“…C o m e les rtsultats et les corrtlations de la litttrature concement gdntralement des jets de gros diambtre, la prtsente Ctude exphimentale s'est rtvtlte ntcessaire afin de situer le cas des jets de faible diambtre (ou tpaisseur) par rapport aux donntes de la litttrature.La difficult6 d'observer et de mesurer la diformation engendrte par un jet circulaire de faible diambtre tombant sur un liquide opaque comme le mercure, nous a aments B choisir d'observer l'irnpact d'un jet bidimensionnel. Dans le prtsent travail, il s'est donc plutSt agi d'effectuer une approche de la connaissance de la dkformation subie par une surface de mercure recevant un jet circulaire de liquide.Les rtsultats obtenus sont comparts aux relations thkriques qui, dans la littkrature, et notamment dans I'article de synthbse de Bin (1985), relient les dimensions de la dtformation de la surface aux autres parambtres du systbme.…”

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“…Les rtsultats obtenus sont comparts aux relations thkriques qui, dans la littkrature, et notamment dans I'article de synthbse de Bin (1985), relient les dimensions de la dtformation de la surface aux autres parambtres du systbme.…”

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Déformation subie par une nappe de mercure soumise à l'impact d'un jet liquide bidimensionnel immergé

Bensmaılı

Cœuret

1995

Can J Chem Eng

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Le travail étudie la déformation subie par une nappe de mercure recevant perpendiculairement un jet liquide immergé bidimensionnel de faible épaisseur. On a fait varier la largeur du jet, le nombre de Reynolds d'injection et la hauteur du jet. On a mesuré expérimentalement la profondeur et le diamètre de la cavité faite par le jet dans la nappe de mercure et on a comparé les valeurs obtenues à des expressions théoriques de la littérature. En dépit de l'échelle relativement réduite, le comportement du système étudié est décrit convenablement par des modèles proposés pour des sytèmes à grande échelle.

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Behavior of liquid surface impinged by turbulent jets

Cited by 6 publications

References 16 publications

Oxygen Transfer in the Water-Jet Vessel

Oxygen Transfer in the Water-Jet Vessel

Mass Transfer Into a Free Liquid Surface Effected by Submerged Jets

Déformation subie par une nappe de mercure soumise à l'impact d'un jet liquide bidimensionnel immergé

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