Journal
CHEMICAL ENGINEERING SCIENCE
Volume 60, Issue 8-9, Pages 2303-2316Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2004.11.017
Keywords
unbaffled stiffed vessel; turbulence; CFD; large-eddy simulation
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The turbulent flow field generated in an unbaffled stirred tank by a Rushton turbine was computed by large-eddy simulation (LES). The Smagorinsky model was used to model the unresolved, or sub-grid, scales. A general purpose CFD code was appropriately modified in order to allow the computation of the sub-grid viscosity and to perform statistics on the computed results. The numerical predictions were compared with the literature results for comparable configurations and with experimental data obtained using particle image velocimetry. A very good agreement was found as regards both time-averaged resolved fields and turbulence quantities. (c) 2004 Elsevier Ltd. All rights reserved.
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