Transient CFD simulations of turbulent liquid - liquid flow in a Kenics static mixer. Radial and tangential velocities

Murasiewicz, Halina; Jaworski, Zdzislaw

doi:10.2478/v10026-009-0021-2

Abstract

The results of modelling of the two-phase turbulent flow of a two-phase, liquid-liquid mixture in a Kenics static mixer were reported. Advanced transient simulations were performed using the large eddy simulation (LES) approach and a broader analysis of the velocity field was carried out. The two-phase flow was modelled employing the Eulerian approach in the pseudo-homogeneous version of the mixture model. Three cases were again considered, which differed by the density of the two phases and the simulations were performed for Reynolds number of 10,000. The LES results for the tangential and radial components were compared with those obtained in the steady-state RANS approach.

References

Godfrey, J. Static Mixers in the Process Industries, editors: Harnby N., Edwards M., Nienow A., Butterworth-Heinmann, USA, 1992, 225-249.10.1016/B978-075063760-2/50033-0
Search in Google Scholar
Jaworski, Z., Murasiewicz, H. & Pianko-Oprych, P. Large Eddy Simulation of turbulent liquid-liquid flow in Kenics static mixers, Proc. 10th Intern. Conf. Multiphase Flow in Ind. Plant, 2006, Tropea, Italy.
Search in Google Scholar
Jaworski, Z. & Murasiewicz, H. CFD of turbulent liquid-liquid flow in Kenics static mixers, Proc. 11th Intern. Conf. Multiphase Flow in Ind. Plant, 2008, Palermo, Italy.10.2478/v10026-009-0021-2
Search in Google Scholar
Byrde, O. & Sawley, M. Optimization of a Kenics static mixer for non-creeping flow conditions, Chemical Engineering Journal, 1999, 72, 163-169 [DOI:10.1016/S1385-8947(98)00145-4].10.1016/S1385-8947(98)00145-4
Search in Google Scholar
Szalai, E.S. & Muzzio, F. Fundamental approach to the design and optimization of static mixers, Aiche J., 2003, 49, 11, 2687-2699 [DOI:10.1002/aic.690491103].10.1002/aic.690491103
Search in Google Scholar
Song, H. & Han, S. A general correlation for pressure drop in a Kenics static mixer, Chemical Engineering Science, 2005, 60, 5696-5704 [DOI:10.1016/j.ces.2005.04.084].10.1016/j.ces.2005.04.084
Search in Google Scholar
Hobbs, D.M. & Muzzio, F. Optimization of a static mixer using dynamical system techniques, Chemical Engineering Science, 1998, 53, 18, 3199-3213 [DOI:10.1016/S0009-2509(98)00115-8].10.1016/S0009-2509(98)00115-8
Search in Google Scholar
Jaworski, Z., Pianko-Oprych, P., Marchisio, D. & Nienow, A.W. Numerical modelling of turbulent drop breakage in a Kenics static mixer and comparison with experimental data, 12^th European Conference on Mixing, 2006, Bologna, Italy.10.1205/cherd06179
Search in Google Scholar
Pope, S. Turbulent Flows, 2000, Cambridge University Press, Cambridge.10.1017/CBO9780511840531
Search in Google Scholar
Hewitt, G.F. & Vassilicos J.C. Prediction of Turbulent Flows, 2005 Cambridge University Press.10.1017/CBO9780511543227
Search in Google Scholar
Jahoda, M., Mostek, M., Kukukova, A., Machon, V. CFD modelling of liquid homogenization in stirred tanks with one and two impellers using large eddy simulation, Chemical Engineering Research and Design, 2007, 85, A5, 616-625.10.1205/cherd06183
Search in Google Scholar
Bakker, A. & Oshinowo, L.M. Modelling of turbulence in stirred vessels using large eddy simulation, Chemical Engineering Research and Design, 2004, A9, 1169-1178 [DOI:10.1205/cerd.82.9.1169.44153].10.1205/cerd.82.9.1169.44153
Search in Google Scholar
Hartmann, H., Derksen, J.J., Montavon, C., Pearson, J., Hamill, I.S. & van den Akker, H.E.A. Assessment of large eddy and RANS stirred tank simulations by means of LDA, Chemical Engineering Science, 2004, 59, 2419 [DOI:10.1016/j.ces.2004.01.065].10.1016/j.ces.2004.01.065
Search in Google Scholar
van Wageningen, W., Kandhai, D., Mudde, R. & van den Akker, H. Dynamic flow in a Kenics static mixer: An assessment of various CFD methods, AIChE Journal, 2004, 50, 1684-1696 [DOI:10.1002/aic.10178].10.1002/aic.10178
Search in Google Scholar
Liu, S.J., Hrymak, A.N. & Wood, P.E. Drop breakup in an SMX static mixer in laminar flow, Canadian Journal of Chemical Engineering, 2005, 83, 793-807.10.1002/cjce.5450830501
Search in Google Scholar
Rama Rao, N.V., Baird, M.H.I., Hrymak, A.N. & Wood, P.E. Dispersion of high-viscosity liquid-liquid systems by flow through SMX static mixer elements, Chemical Engineering Science, 2007, 62, 23, 6885-6896.10.1016/j.ces.2007.08.070
Search in Google Scholar
Sablani, S.S. et al. Handbook of food and bioprocess modeling techniques, 2007, CRC Press Taylor & Francis.10.1201/9781420015072
Search in Google Scholar
Wilcox, D. Turbulence Modelling for CFD, 1993, DCW Industries, California.
Search in Google Scholar
Launder, B. & Spalding, D. Mathematical Models of Turbulence, 1972, Academic Press Inc. London.
Search in Google Scholar

Transient CFD simulations of turbulent liquid - liquid flow in a Kenics static mixer. Radial and tangential velocities

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