期刊
CHEMICAL ENGINEERING SCIENCE
卷 65, 期 20, 页码 5417-5428出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2010.06.020
关键词
Bubble columns; Turbulence; Dispersion; Interface; CFD; OpenFOAM
In the following work, the fundamental aspects of the hydrodynamics of gas-liquid flows in a rectangular bubble column are studied using an Eulerian-Eulerian approach. The model is established in a full three dimensional, unsteady state form and the solution method is based on a new open-source CFD package using a tensor-based formulation applied OpenFOAM. The effects of the drag, lift and virtual mass on the fluid dynamics and time-averaged properties of both phases are studied and discussed. A full integration of closures terms is proposed where the standard k-epsilon model of turbulence is modified to include the effect of the dispersed phase and the bubble-liquid interface on the turbulence behaviour and the hydrodynamic of multiphase flow. The numerical results are compared with the experimental data available in the scientific literature, and they show a good agreement. (C) 2010 Published by Elsevier Ltd.
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