Drag models, solids concentration and velocity distribution in a stirred tank

Powder Technology

Volumn 181, Issue 1, 2008, Pages 1-8

  Ochieng, Aoyi ^a   Onyango, Maurice S ^b  

^a UNIVERSITY OF THE WITWATERSRAND   (South Africa)

^b TSHWANE UNIVERSITY OF TECHNOLOGY   (South Africa)

Author keywords

CFD; Drag model; Nickel; Solids suspension; Stirred tank

Indexed keywords

COMPUTATIONAL FLUID DYNAMICS; CONCENTRATION (PROCESS); ENERGY DISSIPATION; HYDROFOILS; IMPELLERS; NICKEL; REYNOLDS NUMBER; VELOCITY DISTRIBUTION; VOLUME FRACTION;

DRAG MODEL; SOLIDS SUSPENSION; STIRRED TANK;

DRAG COEFFICIENT;

NICKEL;

COMPUTATIONAL FLUID DYNAMICS; CONCENTRATION (PROCESS); DRAG COEFFICIENT; ENERGY DISSIPATION; HYDROFOILS; IMPELLERS; NICKEL; REYNOLDS NUMBER; VELOCITY DISTRIBUTION; VOLUME FRACTION;

ARTICLE; COMPUTATIONAL FLUID DYNAMICS; ENERGY; MODEL; PARTICLE SIZE; PREDICTION; SOLID; STIRRED REACTOR; SUSPENDED PARTICULATE MATTER; TECHNIQUE; VELOCITY;

EID: 37849018446     PISSN: 00325910     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.powtec.2007.03.034     Document Type: Article

References (19)

1. Derksen J.J. Numerical simulation of solids suspension in a stirred tank. American Institution of Chemical Engineers Journal 49 (2003) 2700-2714
2. Gidaspow D. Multiphase flow and fluidization: Continuum and kinematic theory description (1994), Academic Press, New York
3. Brucato A., Grissini F., and Montante G. Particle drag coefficients in turbulent fluids. Chemical Engineering Science 53 (1998) 3295-3314
4. Montante G., Micale G., Magelli F., and Brucato A. Experimental and CFD prediction of solid particle distribution in vessel agitated with four pitched blade turbines. Transactions of the Institution of Chemical Engineers 79A (2001) 1005-1010
5. Montante G., Pinelli D., and Magelli F. Scale-up criteria for the solids distribution in slurry reactors stirred with multiple impellers. Chemical Engineering Science 58 (2003) 5363-5372
6. Ochieng A., and Lewis A. Nickel solids concentration distribution in a stirred tank. Mineral Engineering 19 (2006) 180-189
7. Wu H., and Patterson G.K. Laser Doppler measurement of turbulent-flow parameters in stirred mixer. Chemical Engineering Science 44 (1989) 2207-2221
8. AEA Technology. CFX5 Flow Solver User guide. Computational Fluid Dynamics Services, Harwell, Oxfordshire (2003), AEA Industrial Technology, UK
9. Lopez de Bertodano M.A. Two fluid model for two-phase turbulent jets. Nuclear Engineering and Design 179 (1998) 65-74
10. Lahey T.R., and Drew D.A. The analysis of two phase flow and heat transfer using a multidimensional, four field, two-fluid model. Nuclear Engineering and Design 204 (2001) 29-44
11. Lane G.L., Schwarz M.P., and Evans G.M. Numerical modelling of gas-liquid flow in stirred tanks. Chemical Engineering Science 60 (2005) 2203-2214
12. Sato Y., and Sekoguchi K. Liquid velocity distribution in two-phase bubble flow. International Journal of Multiphase Flow 7 (1975) 79-95
13. Fajner D., Magelli F., Nocentini M., and Pasquali G. Solids concentration profiles in a mechanically stirred and staged column slurry reactor. Chemical Engineering Research and Design 63 (1985) 235-240
14. A. Ochieng, A hydrodynamic study of nickel suspension in stirred tanks, PhD Thesis, University of Cape Town, 2005.
15. Barresi A., and Baldi G. Solids suspension in an agitated vessel. Chemical Engineering Science 42 (1987) 2949-2956
16. Mersmann A., Werner F., Maurer S., and Bartosch K. Theoretical prediction of the minimum stirrer speed in mechanically agitated suspensions. Chemical Engineering and Processing 37 (1998) 503-510
17. Pinelli D., and Magelli F. Solids distribution in slurry reactors with dilute pseudoplastic suspensions. Industrial Engineering and Chemistry Research 40 (2001) 4456-4462
18. Magelli F., Fajner D., Nocentini M., and Pasquali G. Solid distribution in vessels stirred with multiple impellers. Chemical Engineering Science 45 (1990) 615-625
19. Rieger F., and Ditl P. Suspension of solid particles. Chemical Engineering Science 49 (1994) 2219-2227