6533b7dbfe1ef96bd126f7e3

RESEARCH PRODUCT

Large-Eddy Simulation of Turbulent Flow in an Unbaffled Stirred Tank Driven by a Rushton Turbine

Raul AlcamoGiorgio MicaleFranco GrisafiAlberto BrucatoMichele Ciofalo

subject

Engineeringunbaffled stiffed vesselField (physics)business.industryTurbulenceApplied MathematicsGeneral Chemical EngineeringComputationturbulenceGeneral ChemistryMechanicsComputational fluid dynamicsIndustrial and Manufacturing EngineeringRushton turbinePhysics::Fluid DynamicsViscositylarge-eddy simulationParticle image velocimetrybusinessCFDSimulationLarge eddy simulation

description

The turbulent flow fieldgeneratedin an unbaffledstirredtank by a Rushton turbine was computedby 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-gridviscosity andto perform statistics on the computedresults. The numerical predictions were comparedwith the literature results for comparable configurations andwith experimental data obtainedusing particle image velocimetry. A very goodagreement was foundas regards both time-averagedresolv edfield s andturb ulence quantities. 2004 Elsevier Ltd. All rights reserved.

yearjournalcountryeditionlanguage
2005-04-01
10.1016/j.ces.2004.11.017http://hdl.handle.net/10447/25060