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Cristin-resultat-ID:
1029411
Sist endret:
18. februar 2015, 00:34
NVI-rapporteringsår:
2013
Resultat
Vitenskapelig artikkel
2013
The generality of the standard 2D TFM approach in predicting bubbling fluidized bed hydrodynamics
Schalk Willem Petrus Cloete
Abdelghafour Zaabout
Stein Tore Johansen
MV Annaland
F Gallucci
og
Shahriar Amini
Tidsskrift
Tidsskrift
Powder Technology
ISSN 0032-5910
e-ISSN 1873-328X
NVI-nivå 1
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Om resultatet
Om resultatet
Vitenskapelig artikkel
Publiseringsår: 2013
Volum: 235
Sider: 735 - 746
Open Access
Lenker
Lenker
original online (doi)
https://doi.org/10.1016/j.powtec.2012.11.041
Institusjonsarkiv
hdl.handle.net/11250/2468950
Importkilder
Importkilder
Scopus-ID: 2-s2.0-84871504105
Isi-ID: 000316039400092
Beskrivelse
Beskrivelse
Engelsk
Tittel
The generality of the standard 2D TFM approach in predicting bubbling fluidized bed hydrodynamics
Sammendrag
Hydrodynamic simulations of a pseudo-2D bubbling fluidized bed were carried out and compared to experiments conducted over a wide range of flow conditions. The primary purpose of this study was to assess the generality of the standard 2D Two Fluid Model (TFM) closed by the Kinetic Theory of Granular Flows (KTGF) which is regularly used in the literature to simulate bubbling fluidized beds. Comparisons of the bed expansion ratio over wide ranges of fluidization velocity, bed loading and particle size showed systematic differences between simulations and experiments, indicating that the generality of this modelling approach is questionable. More detailed flow velocity measurements collected via Particle Image Velocimetry (PIV) showed that the model greatly over-predicts flow velocities in the bed. Subsequent 3D simulations showed this over-prediction to be the result of 2D simulations neglecting the wall friction at the front and back walls of the pseudo-2D bed.
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Bidragsytere
Bidragsytere
Schalk Willem Petrus Cloete
Forfatter
ved Institutt for energi- og prosessteknikk ved Norges teknisk-naturvitenskapelige universitet
Abdelghafour Zaabout
Forfatter
ved Prosessteknologi ved SINTEF AS
Stein Tore Johansen
Forfatter
ved Prosessteknologi ved SINTEF AS
MV Annaland
Forfatter
ved Technische Universiteit Eindhoven
F Gallucci
Forfatter
ved Technische Universiteit Eindhoven
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