Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Trailing vortices of Rushton turbine: PIV measurements and CFD simulationswith snapshot approach
Autore:
Ranade, VV; Perrard, M; Le Sauze, N; Bertrand, J;
Indirizzi:
Natl Chem Lab, Div Chem Engn, Ind Flow Modelling Grp, Poona 411008, Maharashtra, India Natl Chem Lab Poona Maharashtra India 411008 a 411008, Maharashtra, India ENSIGC, INP, Toulouse, France ENSIGC Toulouse FranceENSIGC, INP, Toulouse, France
Titolo Testata:
CHEMICAL ENGINEERING RESEARCH & DESIGN
fascicolo: A1, volume: 79, anno: 2001,
pagine: 3 - 12
SICI:
0263-8762(200101)79:A1<3:TVORTP>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER-DOPPLER MEASUREMENTS; BAFFLED STIRRED VESSELS; TURBULENT-FLOW; IMPELLER; FIELD;
Keywords:
trailing vortices; PIV; snapshot approach; CFD; Rushton turbine; stirred vessel;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Ranade, VV Natl Chem Lab, Div Chem Engn, Ind Flow Modelling Grp, Poona 411008, Maharashtra, India Natl Chem Lab Poona Maharashtra India 411008 aharashtra, India
Citazione:
V.V. Ranade et al., "Trailing vortices of Rushton turbine: PIV measurements and CFD simulationswith snapshot approach", CHEM ENG R, 79(A1), 2001, pp. 3-12

Abstract

Understanding fluid dynamic characteristics of trailing vortices behind impeller blades and the capability to computationally simulate these vorticesis essential for reliable design and scale-up of stirred reactors. In thispaper, trailing vortices behind the blades of a standard Rushton turbine were studied using particle image velocimetry (PIV). Angle resolved and angle averaged how fields near the impeller blades were measured and the structure of trailing vortices was studied in detail. A computational snapshot approach of Ranade and Dommeti was extended and used to simulate flow generated by the Rushton turbine in baffled stirred vessels. The approach was implemented using the commercial CFD code, FLUENT (of Fluent Inc, USA). Two turbulence models, namely, standard k - epsilon model and renormalization group version (RNG) of k - epsilon model were used for simulating the flow in stirred vessels. Predicted results were compared with the angle resolved PIVmeasurements to examine whether the computational model captures the flow structures around impeller blades. Predicted results were also compared with the angle averaged PIV data. Predicted gross flow characteristics like pumping number were also compared with the present and previously published experimental data. The results and conclusions drawn from this study will have important implications for extending the applicability of CFD models forsimulating flow near impeller blades.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/10/20 alle ore 01:09:16