Bubbly Flows: Analysis, Modelling and Calculation

✍ Scribed by Prof. Dr.-Ing. Martin Sommerfeld (auth.), Prof. Dr.-Ing. Martin Sommerfeld (eds.)

• Publisher: Springer-Verlag Berlin Heidelberg
• Year: 2004
• Tongue: English
• Leaves: 353
• Series: Heat and Mass Transfer
• Edition: 1
• Category: Library

✦ Synopsis

The book summarises the outcom of a priority research programme: "Analysis, Modelling and Computation of Multiphase Flows". The results of 24 individual research projects are presented. The main objective of the research programme was to provide a better understanding of the physical basis for multiphase gas-liquid flows as they are found in numerous chemical and biochemical reactors. The research comprises steady and unsteady multiphase flows in three frequently found reactor configurations, namely bubble columns without interiors, airlift loop reactors, and aerated stirred vessels. For this purpose new and improved measurement techniques were developed. From the resulting knowledge and data, new and refined models for describing the underlying physical processes were developed, which were used for the establishment and improvement of analytic as well as numerical methods for predicting multiphase reactors. Thereby, the development, lay-out and scale-up of such processes should be possible on a more reliable basis.

✦ Table of Contents

Front Matter....Pages I-VIII
Errata....Pages IX-XIV
Detailed experimental studies on gas-liquid bubble flow in bubble columns with and without recycle....Pages 1-10
Basic experimental investigations on the hydrodynamics of bubble columns....Pages 11-20
Examinination of bubble collisions and coalescence in bubbly flows....Pages 21-36
PIV-Study on bubble interaction and wakes in multiphase flows....Pages 37-52
Dynamics of the Flow in Bubble Column Reactors....Pages 53-66
Improved model for the calculation of homogeneous gas-liquid flows....Pages 67-83
Experimental and theoretical investigation of bubble break-up and coalescence in bubbly flows....Pages 85-99
Experimental investigation and modeling of air/water flows in vertical pipes....Pages 101-115
Experimental and theoretical investigation of instationary bubble flow and mass transfer in a bubble column....Pages 117-127
X-ray Based Particle Tracking Velocimetry for Bubble Columns with High Void Fraction....Pages 129-138
Multi-Level Modelling of Dispersed Gas-Liquid Two-Phase Flows....Pages 139-157
Direct numerical simulation of mass transfer between rising gas bubbles and water....Pages 159-174
Analysis of bubble interactions in bidisperse bubble swarms by direct numerical simulation....Pages 175-190
Finite Element Discretization Tools for Gas-Liquid Flows....Pages 191-201
A transport equation for the interfacial area in bubble columns using a population balance approach....Pages 203-216
Flow fields in bubble columns with mass transfer....Pages 217-231
X-ray computational tomography measurement of 3-phase flow in bubble columns....Pages 233-241
Euler/Lagrange Calculations of Gas-Liquid-Solid-Flows in Bubble Columns with Phase Interaction....Pages 243-259
Local Parameters of Three-Phase Flow in Column Reactors with High Disperse Phase Hold-Up....Pages 261-273
Model fundamentals for the design of three-phase loop reactors....Pages 275-286
Simultaneous measurement of the local liquid and the local solid velocities....Pages 287-294
A Numerical Model of Dispersed Two Phase Flow in Aerated Stirred Vessels based on Presumed Shape Number Density Functions....Pages 295-305
Influence of the Operating Conditions on the Bubble Characteristics in an Aerated Stirred Vessel....Pages 307-318
Bubble dispersion in aerated stirred vessels....Pages 319-335
PDA measurements and numerical simulation of turbulent two-phase flow in stirred vessels....Pages 337-351

✦ Subjects

Industrial Chemistry/Chemical Engineering;Classical Continuum Physics;Engineering Fluid Dynamics;Engineering Thermodynamics, Heat and Mass Transfer