Gas-liquid flow generated by a pitched-blade turbine: Particle image velocimetry measurements and computational fluid dynamics simulations

Industrial and Engineering Chemistry Research

Volumn 42, Issue 21, 2003, Pages 5318-5332

  Khopkar, A R ^a   Aubin, J ^b   Xuereb, C ^b   Le Sauze, N ^b   Bertrand, J ^b   Ranade, V V ^a  

^a NATIONAL CHEMICAL LABORATORY   (India)

^b LABORATOIRE DE GÉNIE CHIMIQUE   (France)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTATIONAL FLUID DYNAMICS; IMPELLERS; VELOCITY MEASUREMENT;

GAS-LIQUID FLOW;

TURBINES;

COMPUTATIONAL FLUID DYNAMICS; GAS-LIQUID TWO-PHASE FLOW; MEASUREMENT METHOD; PARTICLE IMAGE VELOCIMETER; TURBINE;

ARTICLE; DYNAMICS; GAS FLOW; IMPELLER; SIMULATION; VORTEX MOTION;

EID: 0142027086     PISSN: 08885885     EISSN: None     Source Type: Journal    
DOI: 10.1021/ie020954t     Document Type: Article

References (33)

1. Bujalski, W.; Konno, M.; Nienow, A. W. Scale-up of 45° pitch-blade agitators for gas dispersion and solid suspension. Proceedings of the 6th European Mixing Conference, Italy; AIDC/BHR Group Fluid Engineering: Cranfield, U.K., 1988; p 389.
2. Nienow, A. W. Hydrodynamics of stirred bioreactors. Appl. Mech. Rev. 1998, 51 (1), 3.
3. Chapman, C. M.; Nienow, A. W.; Cook, M.; Middleton, J. C. Particle-gas-liquid mixing in stirred vessel. Chem. Eng. Res. Des. 1983, 61, 82.
4. Cooke, M.; Middleton, J. C.; Bush, J. R. Mixing and mass transfer in filamentous fermentations. In Proceedings of the 2nd International Conference on Bioreactor Fluid Dynamics; King, R., Ed.; BHR Group: Cranfield, U.K., 1988; p 37.
5. Ranade, V. V.; Joshi, J. B. Flow generated by a disc turbine: Part I. Trans. Inst. Chem. Eng. 1990, 68, 19.
6. Mavros, P.; Xuereb, C.; Bertrand, J. Determination of 3-D flow fields in agitated vessels by Laser Doppler Velocimetry: use and interpretation of RMS velocities. Chem. Eng. Res. Des. 1998, 74, 223.
7. Sheng J.; Meng H.; Fox, R. O. Validation of CFD simulations of a stirred tank using Particle Image Velocimetry data. Can. J. Chem. Eng. 1998, 76, 611.
8. Aubin, J.; Mavros, P.; Fletcher, D. F.; Bertrand, J.; Xuereb, C. Effect of axial agitator configuration (up-pumping, down-pumping, reverse rotation) on flow patterns generated in stirred vessels. Chem. Eng. Res. Des. 2001, 79, 845.
9. Ranade, V. V.; Perrard, M.; Xureb, C.; Le Sauze, N.; Bertrand, J. Influence of gas flow rate on the structure of trailing vortices of a Rushton turbine. Chem. Eng. Res. Des. 2001, 79A, 957.
10. Sharp, K. V.; Adrian, R. J. PIV study of small-scale flow structure around a Rushton turbine. AIChE J. 2001, 47 (4), 766.
11. Deen, N. G.; Solberg, T.; Hjertager, B. H. Flow generated by an aerated Rushton impeller, Part I: two-phase PIV experiments. Can. J. Chem. Eng. 2001, submitted for publication.
12. Ranade, V. V. Computational Flow Modelling for Chemical Reactor Engineering; Academic Press: New York, 2002.
13. Gosman, A. D.; Lekakou, C.; Politis, S.; Issa, R. I.; Looney, M. K. Multi-dimensional modeling of turbulent two-phase flows in stirred vessels. AIChE J. 1992, 38 (12), 1947.
14. Morud, K. E.; Hjertager, B. H. LDA measurements and CFD modelling of gas-liquid flow in stirred vessel. Chem. Eng. Sci. 1996, 51, 233.
15. Bakker, A.; van den Akker, H. E. A. A computational model for the gas-liquid flow in stirred reactors. Trans. Inst. Chem. Eng. 1994, 72, 594.
16. Ranade, V. V.; van den Akker, H. E. A. A computational snapshot of gas-liquid flow in baffled stirred reactors. Chem. Eng. Sci. 1994, 49, 5175.
17. Ranade, V. V.; Deshpande, V. R. Gas Liquid flow in stirred reactors: Trailing vortices and gas accumulation behind impeller blades. Chem. Eng. Sci. 1999, 54, 2305.
18. Lane, G. L.; Schwarz, M. P.; Evans, G. M. CFD simulations of gas-liquid flow in a stirred tank. Proceedings of the 3rd International Symposium on Mixing in Industrial Processes, Osaka, Japan, 1999; p 21.
19. Lane, G. L.; Schwarz, M. P.; Evans, G. M. Modelling of the interaction between gas and liquid in stirred vessels. 10th Eur. Conf. Mixing 2000, 197.
20. Deen, N. G.; Solberg, T.; Hjertager, B. H. Flow generated by an aerated Rushton impeller, Part II: Numerical simulations. Can. J. Chem. Eng. 2002, submitted for publication.
21. Khopkar, A. R.; Ranade, V. V. CFD simulation of gas-liquid flow in stirred vessels: VC, S33 and L33 flow regimes. Chem. Eng. Sci. 2003, submitted for publication.
22. Ranade, V. V.; Shashidhar, S.; Karve, H. R. A computational study of gas accumulation and cavity formation behind impeller blades: influence of blade shape. International Conference on Multiphase Flows, New Orleans, LA, May 2001.
23. Delnoij, E. Fluid dynamics of gas-liquid bubble columns. Ph.D. Thesis, University of Twente, Twente, The Netherlands, 1999.
24. Deen, N. G.; Westerweel, J.; Hjertager, B. H. Upper limit of the gas fraction in PIV measurements in dispersed gas-liquid flows. 5th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering, Melbourne, Australia, 2001.
25. Bugay, S.; Escudié, R.; Liné, A. Experimental analysis of mean flow and turbulence structure in agitated tanks based on PIV technique with axial impeller. AIChE J. 2002, 48, 463.
26. Brucato, A.; Grisafi, F.; Montane, G. Particle drag coefficient in turbulent fluids. Chem. Eng. Sci. 1998, 45, 3295.
27. Buwa, V. V.; Ranade, V. V. Dynamics of gas-liquid flow in rectangular bubble columns. Chem. Eng. Sci. 2002, 57, 4715.
28. Ranade, V. V.; Tayaliya, Y.; Krishnan, H. CFD predictions of flow near impeller blades in baffled stirred vessels: assessment of computational snapshot approach. Chem. Eng. Commun. 2002, 189 (7), 895.
29. Ng, K.; Fentiman, N. J.; Lee, K. C.; Yianneskis, M. Assessment of sliding mesh CFD predictions and LDA measurements of the flow in a tank stirred by a Rushton impeller. Chem. Eng. Res. Des. 1998, 76, 737.
30. Wechsler, K.; Breuer, M.; Durst, F. Steady and unsteady computations of turbulent flows induced by a 4/45° pitched blade impeller. J. Fluids Eng. 1999, 121, 318.
31. Aubin, J.; Bertrand, J.; Fletcher, D. F.; Xuereb, C. PIV measurements of flow in an aerated tank stirred by a down- and up-pumping axial flow impeller. Exp. Therm. Fluid Sci. 2002, accepted for publication.
32. Jenne, M.; Reuss, M. A critical assessment on the use of κ-ε turbulence model for simulation of turbulent flow induced by a Rushton turbine in a baffled stirred tank reactor. Chem. Eng. Sci. 1999, 54, 3921.
33. Aubin, J. Mixing capabilities of down- and up-pumping axial flow impellers in single phase and gas-liquid systems: experimental and CFD simulations. Ph.D. Thesis, University of Sydney, Sydney, Australia, and INP Toulouse, Toulouse, France, 2001.