Bubbly Flows: Analysis, Modelling, and Calculation

by Sommerfeld, Martin

• ISBN13: 9783540407911
• ISBN10: 354040791X
• Format: Hardcover
• Copyright: 2004-02-01
• Publisher: Springer Verlag

Summary

The book summarises the outcome 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

Bubble driven flows
O. Borchers and G. Eigenberger
Detailed experimental studies on gas-liquid bubble flow in bubble columns with and without recycle	1	(10)
G. Brenn, V. Kolobaric and F. Durst
Basic experimental investigations on the hydrodynamics of bubble columns	11	(10)
D. Bröder and M. Sommerfeld
Examination of bubble collisions and coalescence in bubbly flows	21	(16)
Ch. Brücker and W. Schröder
PIV-Study on bubble interaction and wakes in multiphase flows	37	(16)
S. Godo, K. Junghans, A. Lapin and A. Lübbert
Dynamics of the flow in bubble column reactors	53	(14)
S. Scheid, S. John, O. Bork, H. Parchmann, M. Schlüter, N. Räbiger
Improved model for the calculation of homogeneous gas-liquid flows	67	(18)
O. Gnotke, R. Jeschke and R. Loth
Experimental and theoretical investigation of bubble break-up and coalescence in bubbly flows	85	(16)
D. Lucas, E. Krepper and H.-M. Prasser
Experimental investigation and modeling of air/water flows in vertical pipes	101	(16)
D. Schmitz and D. Mewes
Experimental and theoretical investigation of instationary bubble flow and mass transfer in a bubble column	117	(12)
A. Seeger, U. Kertzscher, K. Affeld, L. Goubergrits and E. Wellnhofer
X-ray based particle tracking velocimetry for bubble columns with high void fraction	129	(10)
Modelling and numerical calculations
M. van Sint Annaland, N.G. Deen and J.A.M. Kuipers
Multi-level modelling of dispersed gas-liquid two-phase flows	139	(20)
D. Bothe, M. Koebe, K. Wielage, J. Prüss and H.-J. Warnecke
Direct numerical simulation of mass transfer between rising gas bubbles and water	159	(16)
M.F. Göz and M. Sommerfeld
Analysis of bubble interactions in bidisperse bubble swarms by direct numerical simulation	175	(16)
D. Kuzmin and S. Turek
Finite element discretization tools for gas-liquid flows	191	(12)
F. Lehr and D. Mewes
A transport equation for the interfacial area in bubble columns using a population balance approach	203	(14)
D. Wiemann, F. Lehr and D. Mewes
Flow fields in bubble columns with mass transfer	217	(16)
Three-phase flows
M. Behling and D. Mewes
X-ray computational tomography measurement of 3-phase flow in bubble columns	233	(10)
E. Bourloutski and M. Sommerfeld
Euler/Lagrange calculations of gas-liquid-solid-flows in bubble columns with phase interaction	243	(18)
J.H. Enß, J. Schallenberg, V. Michele, H. Dziallas, D.C. Hempel
Local parameters of three-phase flow in column reactors with high disperse phase hold-up	261	(14)
S. John, S. Scheid, H. Parchmann, O. Bork, M. Schluter and N. Räbiger
Model fundamentals for the design of three-phase loop reactors	275	(12)
U. Kertzscher, A. Seeger, K. Affeld and E. Wellnhofer
Simultaneous measurement of the local liquid and the local solid velocities	287	(8)
Stirred vessels
E. Gharaibah and W. Polifke
A numerical model of dispersed two phase flow in aerated stirred vessels based on presumed shape number density functions	295	(12)
V. Ilchenko, R. Maurus and T. Sattelmayer
Influence of the operating conditions on the bubble characteristics in an aerated stirred vessel	307	(12)
F. Mayinger and O. Feldmann
Bubble dispersion in aerated stirred vessels	319	(18)
A.F. Nassar, G. Zivkovic, B. Genenger and F. Durst
PDA measurements and numerical simulation of turbulent two-phase flow in stirred vessels	337