| Item Type: |
Conference or Workshop Item
|
| Erschienen: |
2008 |
| Creators: |
Bothe, D. and Alke, A. |
| Title: |
Direct Numerical Simulation of Bubble Dynamics and Transfer Processes in Pure and Contaminated Systems |
| Language: |
English |
| Uncontrolled Keywords: |
Direct Numerical Simulation, VOF-method,
bubble hydrodynamics, Reactive mass transfer, Surfactant. |
| Divisions: |
04 Department of Mathematics > Mathematical Modelling and Analysis
UNSPECIFIED
Zentrale Einrichtungen
04 Department of Mathematics |
| Event Title: |
6th Int. Conf. on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries |
| Event Location: |
Trondheim/Norway |
| Date Deposited: |
05 Apr 2011 14:14 |
| Alternative Abstract: |
| Alternative abstract | Language |
|---|
| Bubbly flows in Chemical Engineering systems are typically
accompanied by transfer of chemical components from one
phase to the other, often followed by chemical reaction. CFD
models such as the Euler-Euler or the Euler-Lagrange model
require the modelling of closure terms which account for the
exchange of mass, momentum, species mass etc. between the
phases. This requires a detailed understanding of the hydrodynamics
and mass transfer especially at single bubbles. Here,
Direct Numerical Simulations based on the continuum mechanical
models have recently become a helpful complement
to the experimental investigations needed for the derivation of
such closures terms. This paper reports on current numerical
approaches for the Direct Numerical Simulation of single
bubble dynamics both in a clean liquid and in a surfactant
solution, as well as on reactive mass transfer at a rising bubble. | English |
|
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