CFD simulations and particle image velocimetry measurements in an industrial scale rotating disc contactor

Fluid dynamics of the single-phase and two-phase flow in a segment of a rotating disc contactor (RDC) liquid-liquid extraction column with 450 mm inner diameter were studied by performing computational fluid dynamics (CFD) simulations and particle image velocimetry (PIV) measurements. The fluid dyna...

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Veröffentlicht in:AIChE journal Jg. 57; H. 1; S. 10 - 26
Hauptverfasser: Drumm, Christian, Hlawitschka, Mark W, Bart, Hans-Jörg
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hoboken Wiley Subscription Services, Inc., A Wiley Company 2011
American Institute of Chemical Engineers
Schlagworte:
CFD
Computational fluid dynamics
Computer simulation
Contactors
Disks
Energy dissipation
Flow characteristics
Fluid dynamics
Fluid flow
Hydrodynamics
liquid-liquid extraction
Mathematical models
Measurement
Multiphase flow
particle image velocimetry
rotating disc contactor
Simulation
Turbulence
Turbulent flow
Velocity
ISSN:0001-1541, 1547-5905
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Zusammenfassung:Fluid dynamics of the single-phase and two-phase flow in a segment of a rotating disc contactor (RDC) liquid-liquid extraction column with 450 mm inner diameter were studied by performing computational fluid dynamics (CFD) simulations and particle image velocimetry (PIV) measurements. The fluid dynamics were investigated to test the predictivity of CFD at industrial scale. Different turbulence models in conjunction with the Eulerian approach were applied in the single-phase and two-phase simulations. The turbulent flow characteristics were analyzed by PIV measurements to validate the CFD simulations. An iso-optical system composed of CaCl₂/water-butylacetate allows for the two-phase PIV measurements. Local turbulent energy dissipation was derived from velocity gradients in PIV data. In this connection, the influence of the PIV spatial resolution on the measured energy dissipation was also analyzed, and different fit functions were tested to scale the measured energy dissipation. Simulated velocity fields as well as the energy dissipation were compared with the experimental PIV data. The results from the simulations and experiments are in good agreement. The work shows that CFD can predict hydrodynamic characteristics even at bigger scales but is still subject to some minor restrictions. © 2010 American Institute of Chemical Engineers AIChE J, 2011
Bibliographie:http://dx.doi.org/10.1002/aic.12249
ArticleID:AIC12249
Deutsche Forschungsgemeinschaft (DFG)
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ISSN:0001-1541
1547-5905
DOI:10.1002/aic.12249