Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received February 21, 2017
Accepted August 1, 2017
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
Computational fluid dynamics simulation of hydrodynamics in an uncovered unbaffled tank agitated by pitched blade turbines
Key Laboratory of Testing Technology for Manufacturing Process of Ministry of Education, School of Manufacturing Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China 1State Key Laboratory of Chemical Engineering, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, P. R. China
tchllc@126.com
Korean Journal of Chemical Engineering, November 2017, 34(11), 2811-2822(12), 10.1007/s11814-017-0208-9
Download PDF
Abstract
Computational fluid dynamics (CFD) simulations were applied for evaluating the hydrodynamics characteristics in an uncovered unbaffled tank agitated by pitched blade turbines. A volume of fluid (VOF) method along with a Reynolds stress model (RSM) was used to capture the gas-liquid interface and the turbulence flow in the tank. The reliability and accuracy of the simulations are verified. The simulation results show that the vortex can be divided into central zone and peripheral zone, and flow field in the tank can be divided into forced vortex flow region and free vortex flow region. With the increase of impeller speed, the vortex becomes deeper, while the critical radius of the two zones keeps almost unchanged. The impeller clearance and the rotational direction have little effect on the vortex shape. The vortex becomes deeper with increasing of the impeller diameter or the blade angles at the same rotational speed. Power number is little influenced by the impeller speed, and decreases by about 30% when impeller diameter varies from 0.25T to 0.5T. When blade angle varies from 30 ° to 90 °, power number increases by about 2.32-times. Power number in uncovered unbaffled tank is much smaller than that in baffled tank, but is very close to that in a covered unbaffled tank. The discrepancy of power number in uncovered unbaffled tank and that in covered unbaffled tank is less than 10%.
Keywords
References
Lamberto DJ, Muzzio FJ, Swanson PD, Tonkovich AL, Chem. Eng. Sci., 51(5), 733 (1996)
Alvarez MM, Arratia PE, Muzzio FJ, Can. J. Chem. Eng., 80(4), 546 (2002)
Hu YY, Liu Z, Yang JC, Cheng Y, Chinese J. Chem. Eng., 61, 2517 (2010)
Rousseaux JM, Muhr H, Plasari E, Can. J. Chem. Eng., 79(5), 697 (2001)
Hekmat D, Hebel D, Schmid H, Weuster-Botz D, Process Biochem., 42(12), 1649 (2007)
Rao AR, Kumar B, J. Chem. Technol. Biotechnol., 82(1), 101 (2007)
Rieger F, Ditl P, Noval V, Chem. Eng. Sci., 34, 397 (1979)
Rao AR, Kumar B, Patel AK, Science Asia, 35, 183 (2009)
Zlokarnik M, Chem. Eng. Technol., 43, 1028 (1971)
Ciofalo M, Brucato A, Grisafi F, Torraca N, Chem. Eng. Sci., 51, 3357 (1996)
MARKOPOULOS J, KONTOGEORGAKI E, Chem. Eng. Technol., 18(1), 68 (1995)
Nagata S, Mixing: Principles and Applications, Wiley, New York (1975).
Grisafi F, Brucato A, Rizzuti L, Inst. Chem. Eng. Symp. Ser., 136, 571 (1994)
Haque JN, Mahmud T, Roberts KJ, Rhodes D, Ind. Eng. Chem. Res., 45(8), 2881 (2006)
Haque JN, Mahmud T, Roberts KJ, Liang JK, White G, Wilkinson D, Rhodes D, Can. J. Chem. Eng., 89(4), 745 (2011)
Scargiali F, Busciglio A, Grisafi F, Tamburini A, Micale G, Brucato A, Ind. Eng. Chem. Res., 52(42), 14998 (2013)
Rao AR, Patel AK, Kumar B, J. Chem. Technol. Biotechnol., 85(6), 805 (2010)
Rao AR, Kumar B, J. Hydraul. Div., Am. Soc. Civ. Eng., 135, 38 (2009)
Assirelli M, Bujalski W, Eaglesham A, Nienow AW, Chem. Eng. Sci., 63(1), 35 (2008)
Busciglio A, Grisafi F, Scargiali F, Brucato A, Chem. Eng. J., 254, 201 (2014)
Glover GMC, Fitzpatrick JJ, Chem. Eng. J., 127(1-3), 11 (2007)
Yang FL, Zhou SJ, Chem. Biochem. Eng. Q., 29, 395 (2015)
Lamarque N, Zoppe B, Lebaigue O, Dolias Y, Bertrand M, Ducros F, Chem. Eng. Sci., 65(15), 4307 (2010)
Speziale CG, Sarkar S, Gatski TB, J. Fluid Mech., 277, 245 (1991)
Nemdili F, Azzi A, Theodoridis G, Jubran BA, Heat Transf. Eng., 11, 950 (2008)
Vallee C, Hohne T, Prasser HM, Suhnel T, Nucl. Eng. Des., 238, 637 (2008)
Tamburini Alessandro, Cipollina Andrea, Micale Giorgio, Scargiali Francesca, Brucato Alberto, Ind. Eng. Chem. Res., 55(27), 7535 (2016)
Markopoulos J, Kontogeorgaki E, Chem. Ind. Technol., 65, 839 (1993)
Scargiali F, Busciglio A, Grisafi F, Brucato A, Biochem. Eng. J., 82, 41 (2014)
Driss Z, Bouzgarrou G, Chtourou W, Kchaou H, Abid MS, Eur. J. Mech. B-Fluid, 29, 236 (2010)
Armenante PM, Luo C, Chou CC, Fort I, Medek J, Chem. Eng. Sci., 20, 3483 (1997)
Tamburini A, Brucato A, Busciglio A, Cipollina A, Grisafi F, Micale G, Scargiali F, Vella G, Ind. Eng. Chem. Res., 53(23), 9587 (2014)
Bates RL, Fondy PL, Corpstein RR, I. and Ec Proc. Des. Dev., 2, 310 (1963)
Rewatkar VB, Raghava Rao KSMS, Joshi JB, Chem. Eng. Commun., 88, 69 (1990)
Montante G, Lee KC, Brucato A, Yianneskis M, Chem. Eng. Sci., 56(12), 3751 (2001)
Ibrahim S, Nienow AW, Trans. IChemE. Eng. Res. Des., 73, 485 (1995)
Yapici K, Karasozen B, Schafer M, Uludag Y, Chem. Eng. Process., 47, 1340 (2008)
Smit L, During J, Belgium, Bruges 2: 633 (1991).
Ge CY, Wang JJ, Gu XP, Feng LF, Chem. Eng. Res. Des., 92(6), 1027 (2014)
Chapple D, Kresta SM, Wall A, Afacan A, Trans. IChem. E., 80, 364 (2002)
Mostek M, Kukukova A, Jahoda M, Machon V, Chem. Pap., 59, 380 (2005)
Kuncewicz C, Pietrzykowski M, Chem. Eng. Sci., 56(15), 4659 (2001)
Scargiali F, Tamburini A, Caputo G, Micale G, Chem. Eng. Res. Des., 123, 99 (2017)
Le Lan A, Angelino H, Chem. Eng. Sci., 27, 1969 (1972)
Alvarez MM, Arratia PE, Muzzio FJ, Can. J. Chem. Eng., 80(4), 546 (2002)
Hu YY, Liu Z, Yang JC, Cheng Y, Chinese J. Chem. Eng., 61, 2517 (2010)
Rousseaux JM, Muhr H, Plasari E, Can. J. Chem. Eng., 79(5), 697 (2001)
Hekmat D, Hebel D, Schmid H, Weuster-Botz D, Process Biochem., 42(12), 1649 (2007)
Rao AR, Kumar B, J. Chem. Technol. Biotechnol., 82(1), 101 (2007)
Rieger F, Ditl P, Noval V, Chem. Eng. Sci., 34, 397 (1979)
Rao AR, Kumar B, Patel AK, Science Asia, 35, 183 (2009)
Zlokarnik M, Chem. Eng. Technol., 43, 1028 (1971)
Ciofalo M, Brucato A, Grisafi F, Torraca N, Chem. Eng. Sci., 51, 3357 (1996)
MARKOPOULOS J, KONTOGEORGAKI E, Chem. Eng. Technol., 18(1), 68 (1995)
Nagata S, Mixing: Principles and Applications, Wiley, New York (1975).
Grisafi F, Brucato A, Rizzuti L, Inst. Chem. Eng. Symp. Ser., 136, 571 (1994)
Haque JN, Mahmud T, Roberts KJ, Rhodes D, Ind. Eng. Chem. Res., 45(8), 2881 (2006)
Haque JN, Mahmud T, Roberts KJ, Liang JK, White G, Wilkinson D, Rhodes D, Can. J. Chem. Eng., 89(4), 745 (2011)
Scargiali F, Busciglio A, Grisafi F, Tamburini A, Micale G, Brucato A, Ind. Eng. Chem. Res., 52(42), 14998 (2013)
Rao AR, Patel AK, Kumar B, J. Chem. Technol. Biotechnol., 85(6), 805 (2010)
Rao AR, Kumar B, J. Hydraul. Div., Am. Soc. Civ. Eng., 135, 38 (2009)
Assirelli M, Bujalski W, Eaglesham A, Nienow AW, Chem. Eng. Sci., 63(1), 35 (2008)
Busciglio A, Grisafi F, Scargiali F, Brucato A, Chem. Eng. J., 254, 201 (2014)
Glover GMC, Fitzpatrick JJ, Chem. Eng. J., 127(1-3), 11 (2007)
Yang FL, Zhou SJ, Chem. Biochem. Eng. Q., 29, 395 (2015)
Lamarque N, Zoppe B, Lebaigue O, Dolias Y, Bertrand M, Ducros F, Chem. Eng. Sci., 65(15), 4307 (2010)
Speziale CG, Sarkar S, Gatski TB, J. Fluid Mech., 277, 245 (1991)
Nemdili F, Azzi A, Theodoridis G, Jubran BA, Heat Transf. Eng., 11, 950 (2008)
Vallee C, Hohne T, Prasser HM, Suhnel T, Nucl. Eng. Des., 238, 637 (2008)
Tamburini Alessandro, Cipollina Andrea, Micale Giorgio, Scargiali Francesca, Brucato Alberto, Ind. Eng. Chem. Res., 55(27), 7535 (2016)
Markopoulos J, Kontogeorgaki E, Chem. Ind. Technol., 65, 839 (1993)
Scargiali F, Busciglio A, Grisafi F, Brucato A, Biochem. Eng. J., 82, 41 (2014)
Driss Z, Bouzgarrou G, Chtourou W, Kchaou H, Abid MS, Eur. J. Mech. B-Fluid, 29, 236 (2010)
Armenante PM, Luo C, Chou CC, Fort I, Medek J, Chem. Eng. Sci., 20, 3483 (1997)
Tamburini A, Brucato A, Busciglio A, Cipollina A, Grisafi F, Micale G, Scargiali F, Vella G, Ind. Eng. Chem. Res., 53(23), 9587 (2014)
Bates RL, Fondy PL, Corpstein RR, I. and Ec Proc. Des. Dev., 2, 310 (1963)
Rewatkar VB, Raghava Rao KSMS, Joshi JB, Chem. Eng. Commun., 88, 69 (1990)
Montante G, Lee KC, Brucato A, Yianneskis M, Chem. Eng. Sci., 56(12), 3751 (2001)
Ibrahim S, Nienow AW, Trans. IChemE. Eng. Res. Des., 73, 485 (1995)
Yapici K, Karasozen B, Schafer M, Uludag Y, Chem. Eng. Process., 47, 1340 (2008)
Smit L, During J, Belgium, Bruges 2: 633 (1991).
Ge CY, Wang JJ, Gu XP, Feng LF, Chem. Eng. Res. Des., 92(6), 1027 (2014)
Chapple D, Kresta SM, Wall A, Afacan A, Trans. IChem. E., 80, 364 (2002)
Mostek M, Kukukova A, Jahoda M, Machon V, Chem. Pap., 59, 380 (2005)
Kuncewicz C, Pietrzykowski M, Chem. Eng. Sci., 56(15), 4659 (2001)
Scargiali F, Tamburini A, Caputo G, Micale G, Chem. Eng. Res. Des., 123, 99 (2017)
Le Lan A, Angelino H, Chem. Eng. Sci., 27, 1969 (1972)
