TY - JOUR
T1 - Hydrodynamics in a gravity settling vessel
T2 - CFD modelling with LDA validation
AU - Wan, M. H.
AU - Bara, B.
AU - Hackman, L.
AU - Czarnecki, J.
AU - Afacan, A.
AU - Nandakumar, K.
AU - Masliyah, J. H.
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Vertical gravity settling vessels, usually referred to as primary separation vessels (PSV), are used in separating bitumen aggregates from slurry containing sand and fine clays. The hydrodynamics in the PSV influences the separation efficiency of recovered bitumen through the overall mean flow and turbulent interaction. In order to deepen our understanding of the hydrodynamic conditions in such vessels, this paper presents a combined study of the flow field using Laser Doppler Anemometry (LDA) to measure the velocity field, and computational fluid dynamics (CFD) simulations to validate the CFD model. The investigation shows that the flow geometry has a significant influence on the overall flow pattern in such vessels. It also demonstrates that the CFD simulation is a reliable tool in capturing the complex mean flow pattern observed in experiments. Use of different turbulent models such as the standard k-ε model and Reynolds stress model has very little effect on the mean flow field.
AB - Vertical gravity settling vessels, usually referred to as primary separation vessels (PSV), are used in separating bitumen aggregates from slurry containing sand and fine clays. The hydrodynamics in the PSV influences the separation efficiency of recovered bitumen through the overall mean flow and turbulent interaction. In order to deepen our understanding of the hydrodynamic conditions in such vessels, this paper presents a combined study of the flow field using Laser Doppler Anemometry (LDA) to measure the velocity field, and computational fluid dynamics (CFD) simulations to validate the CFD model. The investigation shows that the flow geometry has a significant influence on the overall flow pattern in such vessels. It also demonstrates that the CFD simulation is a reliable tool in capturing the complex mean flow pattern observed in experiments. Use of different turbulent models such as the standard k-ε model and Reynolds stress model has very little effect on the mean flow field.
KW - Computational fluid dynamics
KW - Gravity settling vessel
KW - Laser doppler anemometer
KW - Mean flow pattern
KW - Turbulence
UR - http://www.scopus.com/inward/record.url?scp=0034458220&partnerID=8YFLogxK
U2 - 10.1002/cjce.5450780604
DO - 10.1002/cjce.5450780604
M3 - 文章
AN - SCOPUS:0034458220
SN - 0008-4034
VL - 78
SP - 1046
EP - 1055
JO - Canadian Journal of Chemical Engineering
JF - Canadian Journal of Chemical Engineering
IS - 6
ER -