Bubbly Flows

Detailed experimental studies on gas-liquid bubble flow in bubble columns with and without recycle.- Basic experimental investigations on the hydrodynamics of bubble columns.- Examination ofbubble collisions and coalescence in bubbly flows.- PIV-Study on bubble interaction and wakes in multiphase flows.- Dynamics of the flow in bubble column reactors.- Improved model for the calculation of homogeneous gas-liquid flows.- Experimental and theoretical investigation of bubble break-up and coalescence in bubbly flows.- Experimental investigation and modeling of air/water flows in vertical pipes.- Experimental and theoretical investigation of instationary bubble flow and mass transfer in a bubble column.- X-ray based particle tracking velocimetry for bubble columns with high void fraction.- Multi-level modelling of dispersed gas-liquid two-phase flows.- Direct numerical simulation of mass transfer between rising gas bubbles and water.- Analysis of bubble interactions in bidisperse bubble swarms by direct numerical simulation.- Finite element discretization tools for gas-liquid flows.- A transport equation for the interfacial area in bubble columns using a population balance approach.- Flow fields in bubble columns with mass transfer.- X-ray computational tomography measurement of 3-phase flow in bubble columns.- Euler/Lagrange calculations of gas-liquid-solid-flows in bubble columns with phase interaction.- Local parameters of three-phase flow in column reactors with high disperse phase hold-up.- Model fundamentals for the design of three-phase loop reactors.- Simultaneous measurement of the local liquid and the local solid velocities.- A numerical model of dispersed two phase flow in aerated stirred vessels based on presumed shape number density functions.- Influence of theoperating conditions on the bubble characteristics in an aerated stirred vessel.- Bubble dispersion in aerated stirred vessels.- PDA measurements and numerical simulation of turbulent two-phase flow in stirred vessels.