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Received September 11, 2021
Accepted December 20, 2021
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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
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CFD prediction of mixing performance for circular and non-circular jet mixing tanks
Department of Chemical Engineering, School of Engineering, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand 1Program in Food Process Engineering, School of Food Industry, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand
santi_wattananusorn@hotmail.com
Korean Journal of Chemical Engineering, June 2022, 39(6), 1424-1435(12), 10.1007/s11814-021-1051-6
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Abstract
Our previous CFD predictions of the circular, elliptic, and square jet mixing tanks were re-analyzed to investigate the highest performance jet mixing tank design and the appropriate mixing performance criterion. So, the mixing performance indicated by overall mixing time and maximum mixing time criteria of these jet mixing tanks was compared. These CFD predictions were carefully developed by using our previous reliable jet mixing tank CFD model. For model validation, reasonable agreement between the predicted mixing times and measurements was observed. The results revealed that circular and non-circular jet flow phenomena were significantly different in the near field jet regions. Further, the elliptic jet mixing tank provided the highest mixing performance because of its highest entrainment and turbulence kinetic energy near the jet boundary. Finally, it can be concluded that the maximum mixing time criterion is a suitable mixing performance indicator.
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References
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Mewes D, Renz R, in 7th European Conference on Mixing, Belgium, 131 (1991).
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Hussain F, Husain HS, J. Fluid Mech., 208, 257 (1989)
Schadow KC, Wilson KJ, Lee MJ, J. Propuls. Power, 3(2), 145 (1987)
Mi J, Nathan GJ, Luxton RE, Exp. Fluids, 28(1), 93 (2000)
Elsayed K, Lacor C, Comput. Fluids, 68, 134 (2012)
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Bumrungthaichaichan E, Powder Technol., 396, 327 (2022)
