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Large eddy simulation of an aerated Rushton stirred tank

Arlov, Dragana LU ; Revstedt, Johan LU and Fuchs, Laszlo LU (2006) Conference on Turbulence and Interactions TI2006
Abstract
Simulations of aerated stirred reactor is performed using Large Eddy Simulation (LES). The gas phase is modelled using Lagrangian Particle Tracking (LPT). The reactor is stirred by a single impeller Rushton turbine, centred in the reactor. The air is introduced at the bottom wall through a circular sparger. The main focus is to investigate how the gas phase affects the liquid in the reactor. Effects of gas volume flow and stirrer speed are investigated. The results show that the time averaged liquid velocities in the radial and tangential directions as well as the pumping capacity decrease with increasing gas volume fraction. In the axial direction the gas redirects the radial jet upwards breaking the symmetry of the ring vortices.
Please use this url to cite or link to this publication:
author
; and
organization
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type
Contribution to conference
publication status
published
subject
pages
5 pages
conference name
Conference on Turbulence and Interactions TI2006
conference location
Porquerolles, France
conference dates
0001-01-02
language
English
LU publication?
yes
id
44e5658f-eefe-4540-a83c-a15fdb248f4f
alternative location
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.553.902&rep=rep1&type=pdf
date added to LUP
2019-05-02 14:08:20
date last changed
2019-05-28 11:37:39
@misc{44e5658f-eefe-4540-a83c-a15fdb248f4f,
  abstract     = {Simulations of aerated stirred reactor is performed using Large  Eddy Simulation (LES). The gas phase is modelled using Lagrangian Particle Tracking (LPT). The reactor is stirred by a single impeller Rushton turbine, centred in the reactor. The air is introduced at the bottom wall through a circular sparger. The main focus is to investigate how the gas phase affects the liquid in the reactor.  Effects of gas volume flow and stirrer speed are  investigated. The results show that the time averaged liquid velocities in the radial and tangential directions as well as the pumping capacity decrease with increasing gas volume fraction. In the axial direction the gas redirects the radial jet upwards breaking the symmetry of the ring vortices.},
  author       = {Arlov, Dragana and Revstedt, Johan and Fuchs, Laszlo},
  language     = {eng},
  title        = {Large eddy simulation of an aerated Rushton stirred tank},
  url          = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.553.902&rep=rep1&type=pdf},
  year         = {2006},
}