Characteristics of a motionless mixer for dispersion of immiscible fluids—III. Dynamic behaviour of the average drop size and dispersed phase hold-up

Sembira, A.N.; Merchuk, J.C.; Wolf, D.

doi:10.1016/0009-2509(88)85050-4

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…38. This methodology was used to study dispersion (DSD) behavior against flowrate and mixer's surface wettability , phase ratio and inversion phenomena [Tidhar et al, 1986], and the dynamic behavior of the droplet size against velocity and phase concentration [Sembira et al, 1988].…”

Section: Early Turbulent Studiesmentioning

confidence: 99%

Current advances in liquid–liquid mixing in static mixers: A review

Valdés

Kahouadji

Matar

2022

Chemical Engineering Research and Design

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Section: Early Turbulent Studiesmentioning

confidence: 99%

Current advances in liquid–liquid mixing in static mixers: A review

Valdés

Kahouadji

Matar

2022

Chemical Engineering Research and Design

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“…Ž Static mixers are widely applied and easy to use Pahl and Muschelknautz, 1982;Sembira et al, 1988;Yoon and Choi, . 1996;Heierle, 1989 , but the fundamental understanding of flow and mixing in static mixers is nevertheless relatively min-Ž .…”

Section: Introductionmentioning

confidence: 99%

Characterization of flow and mixing in an SMX static mixer

et al. 2002

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“…Mlynek and Resnick (1972); McManamey (1979); Sembira et al (1988); Pacek et al (1994); Arjunwadkar et al (1998); Kulkarni et al (2001); Brunazzi et al (2004); Shewale and Pandit (2006); Sun et al (2006); Boden et al (2008); Kadam et al (2009)…”

Section: Introductionmentioning

confidence: 99%

CFD simulation of stirred tanks: Comparison of turbulence models. Part I: Radial flow impellers

et al. 2011

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A critical review of the published literature regarding the computational fluid dynamics (CFD) modelling of single-phase turbulent flow in stirred tank reactors is presented. In this part of review, CFD simulations of radial flow impellers (mainly disc turbine (DT)) in a fully baffled vessel operating in a turbulent regime have been presented. Simulated results obtained with different impeller modelling approaches (impeller boundary condition, multiple reference frame, computational snap shot and the sliding mesh approaches) and different turbulence models (standard k − ε model, RNG k − ε model, the Reynolds stress model (RSM) and large eddy simulation) have been compared with the in-house laser Doppler anemometry (LDA) experimental data. In addition, recently proposed modifications to the standard k − ε models were also evaluated. The model predictions (of all the mean velocities, turbulent kinetic energy and its dissipation rate) have been compared with the experimental measurements at various locations in the tank. A discussion is presented to highlight strengths and weaknesses of currently used CFD models. A preliminary analysis of sensitivity of modelling assumptions in the k − ε models and RSM has been carried out using LES database. The quantitative comparison of exact and modelled turbulence production, transport and dissipation terms has highlighted the reasons behind the partial success of various modifications of standard k − ε model as well as RSM. The volume integral of predicted energy dissipation rate is compared with the energy input rate. Based on these results, suggestions have been made for the future work in this area.Nous présentons un examen critique de la littérature concernant la modélisation de la dynamique des fluides numérique (DFN) de l'écoulement turbulentà une phase dans les réacteursà cuve agitée. Dans cette partie de l'examen, nous présentons les simulations de DFN de turbinesà ecoulement radial (principalement des turbinesà disque (TD)) dans un réservoir entièrement cloisonné effectuées dans un régime turbulent. Les résultats des simulations obtenus grâceà différentes approches de modélisation des turbines (couche limite turbulente, méthode des référentiels multiples, snap-shot de modélisation numérique, maillage glissant) età différents modèles de turbulence (modèle standard k-e, modèle RNG k-e, modèle aux tensions de Reynolds et simulation des grandeséchelles) ontété comparés aux données expérimentales internes d'allocation de Dirichlet latente (ADL). De plus, les modifications des modèles standards k-e récemment proposées ontégalementétéévaluées. Les prédictions du modèle (de toutes les vitesses moyennes, de l'énergie cinétique turbulente et de son taux de dissipation) ontété comparées aux données expérimentales relevéesà différents endroits de la cuve. Une discussion présente les points forts et les points faibles des modèles de DFN actuellement utilisés. Une analyse préliminaire de la sensibilité des hypothèses de modélisation liées aux modèles k-e et RSM aété menée en utilis...

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Characteristics of a motionless mixer for dispersion of immiscible fluids—III. Dynamic behaviour of the average drop size and dispersed phase hold-up

Cited by 9 publications

References 6 publications

Current advances in liquid–liquid mixing in static mixers: A review

Current advances in liquid–liquid mixing in static mixers: A review

Characterization of flow and mixing in an SMX static mixer

CFD simulation of stirred tanks: Comparison of turbulence models. Part I: Radial flow impellers

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