Abstract
AbstractA three‐dimensional (3D) transient model was developed to simulate the local hydrodynamics of a gas–liquid–solid three‐phase bubble column using the computational fluid dynamic method, where the multiple size group model was adopted to determine the size distribution of the gas bubbles. Model simulation results, such as the local time‐averaged gas holdups and axial liquid velocities, were validated by experimental measurements under varied operating conditions, e.g., superficial gas velocities and initial solid loadings at different locations in the three‐phase bubble column. Furthermore, the local transient hydrodynamic characteristics, such as gas holdups, liquid velocities, and solid holdups, as well as gas bubble size distribution were predicted reasonably by the developed model for the dynamic behaviors of the three‐phase bubble column. © 2007 American Institute of Chemical Engineers AIChE J, 2007
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