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VOF-Simulation of the lift force for single bubbles in a simple shear flow

Bothe, D. and Schmidtke, M. and Warnecke, H.-J. (2006):
VOF-Simulation of the lift force for single bubbles in a simple shear flow.
In: Chem. Eng. Tech., pp. 1048-1053, 29, (9), [Article]

Item Type: Article
Erschienen: 2006
Creators: Bothe, D. and Schmidtke, M. and Warnecke, H.-J.
Title: VOF-Simulation of the lift force for single bubbles in a simple shear flow
Language: English
Journal or Publication Title: Chem. Eng. Tech.
Volume: 29
Number: 9
Divisions: 04 Department of Mathematics > Mathematical Modelling and Analysis
UNSPECIFIED
Zentrale Einrichtungen
04 Department of Mathematics
Date Deposited: 12 Apr 2011 12:29
Identification Number: doi:10.1002/ceat.200600168
Alternative Abstract:
Alternative abstract Language
Bubbles in shear flows experience a lift force, causing them to migrate sideward while they are rising. This lateral migration is also observed in numerical simulations, which are carried out with an extended version of the highly parallelized code FS3D, employing an advanced Volume-of-Fluid method. The movement of single bubbles in linear shear flows is simulated to obtain the magnitude of the lift force – expressed by the lift force coefficient CL – for various bubble diameters and material data. Simulation results are in good agreement with experiments for medium liquid phase viscosities. An investigation of the dynamic pressure on the bubble surface explains why large bubbles migrate to the opposite direction of small bubblesEnglish
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