AustralieFrV1, Main, Exploration, bibRecord, 00BD03

Impeller geometry effect on velocity and solids suspension

Identifieur interne : 00BD03 ( Main/Exploration ); précédent : 00BD02; suivant : 00BD04

Impeller geometry effect on velocity and solids suspension

Auteurs : J. Wu [Australie] ; Y. Zhu [Australie] ; L. Pullum [Australie]

Source :

Chemical engineering research & design [ 0263-8762 ] ; 2001.

RBID : Pascal:02-0162348

Descripteurs français

Pascal (Inist)
- Mélangeage, Suspension particule, Liquide solide, Appareil agité, Agitation mécanique, Agitateur pale, Incliné, Agitateur disque, Hydrodynamique, Champ écoulement, Distribution vitesse, Turbulence, Anémomètre laser Doppler, Etude expérimentale.

English descriptors

KwdEn :
- Disk agitator, Doppler laser anemometer, Experimental study, Flow field, Hydrodynamics, Inclined, Liquid solid, Mixing, Paddle impeller, Particle suspension, Stirred vessel, Stirring, Turbulence, Velocity distribution.

Abstract

The effect of varying impeller geometrical parameters, including impeller type, number of impeller blades, blade pitch angle and blade thickness, on the turbulent velocity fields in mixing tanks has been studied through LDV measurements. Pitch bladed turbines and disc turbines were used in the experiments. It was found that universal time-mean velocity profiles exist for both pitch bladed turbines and disc turbines. Flow number correlations based on power number for both pitch bladed turbines and disc turbines are presented. It was found that there is a link between impeller pumping capacity and the S parameter in the Zwietering correlation, and this can be expressed as N_QxS=K, where N_Q is the impeller flow number and K is a non-dimensional constant independent of the solid/liquid material property and impeller geometry.

Affiliations:

Australie

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 005870
to stream PascalFrancis, to step Curation: 000869
to stream PascalFrancis, to step Checkpoint: 005836
to stream Main, to step Merge: 00CB81
to stream Main, to step Curation: 00BD03

Le document en format XML

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<term>Hydrodynamics</term>
<term>Inclined</term>
<term>Liquid solid</term>
<term>Mixing</term>
<term>Paddle impeller</term>
<term>Particle suspension</term>
<term>Stirred vessel</term>
<term>Stirring</term>
<term>Turbulence</term>
<term>Velocity distribution</term>
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<term>Suspension particule</term>
<term>Liquide solide</term>
<term>Appareil agité</term>
<term>Agitation mécanique</term>
<term>Agitateur pale</term>
<term>Incliné</term>
<term>Agitateur disque</term>
<term>Hydrodynamique</term>
<term>Champ écoulement</term>
<term>Distribution vitesse</term>
<term>Turbulence</term>
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<front><div type="abstract" xml:lang="en">The effect of varying impeller geometrical parameters, including impeller type, number of impeller blades, blade pitch angle and blade thickness, on the turbulent velocity fields in mixing tanks has been studied through LDV measurements. Pitch bladed turbines and disc turbines were used in the experiments. It was found that universal time-mean velocity profiles exist for both pitch bladed turbines and disc turbines. Flow number correlations based on power number for both pitch bladed turbines and disc turbines are presented. It was found that there is a link between impeller pumping capacity and the S parameter in the Zwietering correlation, and this can be expressed as N<sub>Q</sub>
xS=K, where N<sub>Q</sub>
 is the impeller flow number and K is a non-dimensional constant independent of the solid/liquid material property and impeller geometry.</div>
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Impeller geometry effect on velocity and solids suspension

Impeller geometry effect on velocity and solids suspension

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri