Fluid dynamics of gas-liquid bubble columns

Gas-liquid bubble columns are used extensively in the process industries. The gas-liquid twophase flow prevailing in this type of process equipment is extremely complex, inherently unsteady and dominated by phenomena with widely varying time- and length-scales. it is for this reason that many important fluid dynamical aspects of gas-liquid bubble columns are still poorly understood and difficult to predict a priori. This thesis aims to contribute to our understanding of the fluid dynamics of gas-liquid bubble columns by developing Computational Fluid Dynamics (CFD) models and an advanced experimental technique called Particle Image Velocimetry (PIV).