Dr.ir. N.G. (Niels) Deen

Address:
University of Twente - FCRE
Meander 227
P.O. Box 217
7500 AE Enschede
The Netherlands

Email: N.G.Deen@utwente.nl
Telephone: +31 53 489 4138
Fax: +31 53 489 2882

Quick links: Research - Curriculum vitae - Publications and presentations - Animations - Personal links

Current research

I am involved in the following projects:

Researcher	Title of the project
Wei Bai, M.Sc.	Numerical and Experimental investigation of bubbly flows
Ir. Maureen van Buijtenen	Fundamentals of fluidized bed granulation
Ir. Willem Godlieb	High pressure fluidization
Ir. Yuk Man Lau	Fundamentals of heterogeneous bubbly flow
Dr. Dadan Darmana	Melt Polycondensation Processes (finished)
Dr. Yurong He	Discrete particle modelling of gas-particle flow in a riser (finished)
Dr. Esther van den Hengel	Multilevel modelling of the gas-liquid two-phase flow in a bubble column (finished)
Dr. Jeroen Link	Fluid bed granulation (finished)
Dr. Tianwen Li	Mass Transfer to Dense Fibre Bundles subjected to Cross Flow (finished)
Dr. Bert Vreman	Large Eddy Simulations of Particle-laden Flows (finished)
Dr. Dongsheng Zhang	Two-phase flows with free surfaces (finished)

Ph.D. project (2001)

During my Ph.D. project carried out in 2001 at the Aalborg University Esbjerg in Denmark I worked on experimental and computational fluid dynamics in gas-liquid chemical reactors. The first objective of the Ph.D. project is the further development and improvement of computational models in the research of fluid dynamics in gas-liquid chemical reactors, in order to come to a Computational Fluid Dynamics (CFD) basis which is mostly independent of empirical models. The second objective of the project is the further development and improvement of experimental techniques, in such way that all flow properties relevant for CFD validation can be measured.

The results of this research project can be used in the design of chemical reactors in the process industry. Reliable designtools are very important, because they can help in the scale-up of process equipment, thereby simplifying and shortening the period needed for design.

Parts of the project are carried out in close collaboration with other European research groups. The results of the project are presented at conferences and published in scientific journals.

My Ph.D. thesis and its abstract can be found here.

Curriculum vitae

Niels Deen was born in 1975 in Hengelo Ov., The Netherlands.

Education

Ph.D. and European Doctorate in Chemical Engineering: Aalborg University Esbjerg, Denmark, November 2001
M.Sc. in Chemical Engineering (with a minor in Computer Science): University of Twente, the Netherlands, August 1998

Professional experience

November 2001 - present: Assistant professor at the Group for Fundamentals of Chemical Reaction Engineering, faculty of Science and Technology, University of Twente, The Netherlands.
November 1998 - October 2001: Ph.D. student at the Group for Chemical Fluid Flow Processes, institute for Chemistry and Applied Engineering Science, Aalborg University Esbjerg, Denmark.

Projects

September - December 2000: Visited the Laboratory for Aero & Hydrodynamics at Delft University of Technology in the Netherlands.
November 1998 - October 2001: Ph.D. project at the Group for Chemical Fluid Flow Processes, institute for Chemistry and Applied Engineering Science, Aalborg University Esbjerg, Denmark.
January - August 1998: M.Sc. final project at the Chemical Reactor Engineering group, faculty of Chemical Engineering, University of Twente, The Netherlands.
Up to now only one-phase particle image velocimetry (PIV) was possible. My graduation assignment was to develop two-phase PIV. Therefore I developed and validated new software. The developed technique was successfully applied to the dispersed gas-liquid two-phase flow in bubble columns. Information about the local velocity of gasbubbles and liquid was derived from the measurements.
September - November 1997: Traineeship at the process control group of Shell in Moerdijk, the Netherlands.
All heavily polluted wastewater at the site of Shell in Moerdijk is gathered in a pumping station. Because of the strong varying composition of the wastewater, good pH control was difficult to accomplish. I designed a stable, intelligent feed-forward pH controller to achieve this goal. The designed pH controller proved to be a major improvement.

Courses taken

"PIV training" at LaVision, Goettingen, Germany , November 2004.
"CL Macro Programming in DaVis" at LaVision, Goettingen, Germany , November 2004.
"University Didactic course" at University of Twente, The Netherlands, July 2003.
"Modern Methods in Chemical Engineering" at Aalborg University Esbjerg, Denmark, August 2000.
"Disperse multiphase systems - modelling particulate motion" at Aalborg University, Denmark, May 2000.
ERCOFTAC summerschool "CFD for Two-phase flows" at Delft University, The Netherlands, July 1999.
"Computer Analysis of Fluid Flow Processes" at Aalborg University Esbjerg, Denmark, January 1999.
"Introduction to Computational Fluid Dynamics" and "Optical diagnostics of particles and droplets" at the Von Karman Institute, Belgium, January 1999.

Other

Secretary of the working group on Multiphase Flows of the J.M. Burgerscentrum Research School on Fluid Mechanics in the Netherlands (since January 2009).
Member of the user-committee of a Dutch Technology Foundation (STW) on Flotation and de-mixing of turbulent three-phase flows.
Reviewed articles for AIChE J., Biotechnol. Bioeng., Can. J. Chem. Eng., Catal. Today, Chem. Eng. J., Chem. Eng. Proc., Chem. Eng. Sci., Chem. Prod. Proc. Mod., Comput. Chem. Eng., Exp. Fluids, Ind. Eng. Chem. Res., Int. J. Multiphase Flow, J. Comput. Phys., J. Membrane Sci., Simul. Model Pract. Th. and several international conferences.
Reviewed research proposals of the US National Science Foundation (NSF), the Research Council of Norway (RCN), the Austrian Science Fund (FWF), the Dutch Technology Foundation (STW), the Netherlands Organisation for Scientific Research (NWO) and the Netherlands National Computing Facilities foundation (NCF).
Vice-chair of the Faculty Council (‘Faculteitsraad’) (September 2007 - September 2009).
Occupational health and safety officer in the laboratories of FCRE (since November 2001) and the High Pressure Laboratory at the University of Twente (January 2002 – February 2007).
Member of the Occupational health and safety advisory board of TNW (since May 2005).
Webmaster for the websites of the group Fundamentals of Chemical Reaction Engineering (since November 2001) and the Institute for Chemistry and Applied Engineering Science at Aalborg University Esbjerg (November 1998 – September 2001).

Publications and presentations

Theses

Deen, N.G. (2001): "An Experimental and Computational Study of Fluid Dynamics in Gas-Liquid Chemical Reactors", Ph.D. thesis, Aalborg University Esbjerg.
(Abstract. Download pdf, 8.2 MB)
Deen, N.G. (1998): "Multi-phase Particle Image Velocimetry (PIV) in bubble columns", M.Sc. thesis, University of Twente.

Book chapters

Deen, N.G., Mudde, R.F. and Kuipers, J.A.M. (2009): "Bubble Columns",
In: Ullmann's Encylopedia of Industrial Chemistry (in Press).
Heinrich, S., Deen, N.G., Adams, M., Seville, J.P.K., Kuipers, J.A.M., Peglow, M., Tsotsas, E. (2009): "Chapter 5: Measuring techniques for particle formulation processes",
In: Modern Drying Technology, Volume 2: Experimental techniques (Eds.: Tsotsas, E., Mujumdar, A.S.), Wiley-VCH, ISBN 978-3-527-31557-4, 187-278.
Deen, N.G. and Kuipers, J.A.M. (2008): "Computational Multiphase Fluid Dynamics of dispersed flows",
In: ERCOFTAC Best Practice Guidelines for Computational Fluid Dynamics of Dispersed Multi-Phase Flows (Eds.: M. Sommerfeld, B. van Wachem, R. Oliemans), ERCOFTAC, ISBN 978-91-633-3564-8.
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2006): "Multi-level computational fluid dynamics models for the description of particle mixing and granulation",
In: Granulation (Handbook of Powder Technology, Volume 11) (Eds.: A.D. Salman, M.J. Hounslow, J. Seville), Elsevier, ISBN 0-444-51871-1.
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2005): "Numerical simulations of bubbly flows in industrial applications",
In: Industrial two-phase flow CFD – lecture Series 2005-04 (Ed.: J.-M. Buchlin), Von Karman Institute for Fluid Dynamics, ISBN 2-930389-60-5, 1-19.
Vreman, A.W., Geurts, B.J., Deen, N.G. and Kuipers, J.A.M. (2004): "Large-eddy simulation of a particle-laden turbulent channel flow,"
In: Direct and Large-Eddy Simulation V (Eds. R. Friedrich, B.J. Geurts, O. Metais), Muenchen, Springer, Dordrecht, ISBN 978-1-4020-2032-2, 271-278.
van Sint Annaland, M., Deen, N.G., and Kuipers, J.A.M. (2003): "Multi-Level Modelling of Dispersed Gas-Liquid Two-Phase Flows",
In: Heat and Mass Transfer (Bubbly Flows Analysis, Modelling and Calculation) (Ed.: M. Sommerfeld), Springer-Verlag, ISBN 978-3-540-40791-1, 139-157.

Journal papers

Antonyuk, S., Heinrich, S., Tomas, J., Deen, N.G., van Buijtenen, M.S., Kuipers, J.A.M. (2009):: "Energy absorption during compression and impact of dry elastic-plastic spherical granules",
Granular Matter, in Press
(download pdf)
Darmana, D., Deen, N.G., Kuipers, J.A.M., Harteveld, W., and R.F. Mudde (2009): "Numerical study of homogeneous bubbly flow: influence of the inlet conditions to the hydrodynamic behavior",
International Journal of Multiphase Flow, in Press
(download pdf)
Antonyuk, S., Heinrich, S., Deen, N.G., Kuipers, J.A.M. (2009):: "Influence of liquid layers on energy absorption during particle impact",
Particuology, 7 (2009) 245–259
(download pdf)
He, Y., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. (2009):: "Gas-solid turbulent flow in a circulating fluidized bed riser: experimental and numerical study of mono-disperse particle systems",
Industrial & Engineering Chemistry Research, Vol. 48, pp. 8091–8097
(download pdf)
He, Y., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. (2009):: "Gas-solid turbulent flow in a circulating fluidized bed riser: numerical study of binary particle systems",
Industrial & Engineering Chemistry Research, Vol. 48, pp. 8098–8108
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M., Jacob, M. and Mörl, L. (2009):: "Characterization and CFD-modeling of the hydrodynamics of a prismatic spouted bed apparatus",
Chemical Engineering Science, Volume 64, Issue 14, 15 July 2009, Pages 3352-3375
(download pdf)
Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. (2009):: "Direct numerical simulation of complex multi-fluid flows using a combined front tracking and immersed boundary method",
Chemical Engineering Science, Volume 64, Issue 9, Pages 2186-2201
(download pdf)
Willems, P., Kemperman, A.J.B., Lammertink, R.G.H., Wessling, M., van Sint Annaland, M., Deen, N.G., Kuipers, J.A.M., van der Meer, W.G.J. (2009):: "Bubbles in spacers: direct observation of bubble behavior in spacer filled membrane channels",
Journal of Membrane Science, Volume 333, Issues 1-2, 1 May 2009, Pages 38-44
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2009):: "A discrete particle simulation study on the influence of restitution coefficient on spout fluidized bed dynamics",
Chemical Engineering & Technology, Volume 32, No. 3, Pages 454-462
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., Kuipers, J.A.M. and Mörl, L. (2009):: "Three-Dimensional Computational Fluid Dynamics Modeling of a Prismatic Spouted Bed",
Chemical Engineering & Technology, Volume 32, No. 3, Pages 470-481
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2009):: "A discrete element study of wet particle-particle interaction during granulation in a spout fluidized bed",
Canadian Journal of Chemical Engineering, Volume 87, Issue 2, Pages 308-317
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. and Mörl, L. (2009):: "CFD modeling of a prismatic spouted bed with two adjustable gas inlets",
Canadian Journal of Chemical Engineering, Volume 87 Issue 2, Pages 318-328
(download pdf)
Zhang, D., Deen, N.G., and Kuipers, J.A.M. (2009):: "Euler-Euler Modeling of Flow, Mass Transfer, and Chemical Reaction in a Bubble Column",
Industrial & Engineering Chemistry Research, 2009, 48 (1), 47-57
(download pdf)
Link, J.M., Godlieb, W., Tripp, P., Deen, N.G., Heinrich, S., Kuipers, J.A.M., Schönherr, M. and Peglow, M. (2009):: "Comparison of fibre optical measurements and discrete element simulations for the study of granulation in a spout fluidized bed",
Powder Technology, Volume 189, Issue 2, 31 January 2009, Pages 202-217
(download pdf)
Vreman, B., Geurts, B.J., Deen, N.G., Kuipers, J.A.M., and Kuerten, J.G.M. (2009): "Two- and Four-Way Coupled Euler-Lagrangian Large-Eddy Simulation of Turbulent Particle-Laden Channel Flow",
Flow, Turbulence and Combustion (2009) 82:47–71
(download pdf)
Niceno, B., Dhotre, M.T., and Deen, N.G. (2008): "One Equation Subgrid Scale (SGS) Modeling for Euler-Euler Large Eddy Simulation (EELES) of Dispersed Bubbly Flow",
Chemical Engineering Science, Volume 63, Issue 15, August 2008, Pages 3923-3931
(download pdf)
Gryczka, O., Heinrich, S., Miteva, V., Deen, N.G. Kuipers, J.A.M., Jacob, M. and Mörl, L. (2008): "Characterization of the pneumatic behavior of a novel spouted bed apparatus with two adjustable gas inlets",
Chemical Engineering Science, Volume 63, Issue 3, February 2008, Pages 791-814
(download pdf)
van der Hoef, M.A., van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2008): "Numerical Simulation of Dense Gas-Solid Fluidized Beds: A Multiscale Modeling Strategy",
Annual Review of Fluid Mechanics Jan 2008, Vol. 40: 47-70.
(download pdf)
Godlieb, W., Deen, N.G. and Kuipers, J.A.M. (2008): "On the relationship between operating pressure and granular temperature: a discrete particle simulation study",
Powder Techology, Volume 182, Issue 2, 22 February 2008, Pages 250-256
(download pdf)
Zeilstra, C., Collignon, J.G., van der Hoef, M.A., Deen, N.G. and Kuipers, J.A.M. (2008): "Experimental and numerical study of wall-induced granular convection",
Powder Technology 184 (2), pp. 166-176
(download pdf)
Kleijn van Willigen, F., Demirbas, B., Deen, N.G., Kuipers, J.A.M. and van Ommen, J.R. (2008): "Discrete particle simulations of an electric field enhanced fluidized bed",
Powder Technology 183 (2), pp. 196-206
(download pdf)
Link, J.M., Fan, X., Wood, J., Deen, N.G., Ingram, A., Parker, D.J., Seville, J.P.K. and Kuipers, J.A.M. (2008): "PEPT and discrete particle simulation study of spout-fluid bed regimes",
AIChE Journal, Volume 54, Issue 5 (p 1189-1202)
(download pdf)
Deen, N.G., van Sint Annaland, M., van der Hoef, M.A. and Kuipers, J.A.M. (2007): "Review of discrete particle modeling of fluidized beds",
Chemical Engineering Science, Volume 62, Issues 1-2, January 2007, Pages 28-44
(download pdf)
Link, J.M., Godlieb, W., Deen, N.G. and Kuipers, J.A.M. (2007): "Discrete element study of granulation in a spout-fluidized bed",
Chemical Engineering Science, Volume 62, Issues 1-2, January 2007, Pages 195-207
(download pdf)
Dijkhuizen, W., Bokkers, G.A., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. (2007): "Extension of PIV for measuring granular temperature field in dense fluidized beds",
AIChE Journal, Volume 53, Issue 1, January 2007, Pages 108-118.
(download pdf)
Deen, N.G., van der Hoef, M.A., van Sint Annaland, M. and Kuipers, J.A.M. (2007): "Numerical simulation of dense gas-particle flows using the Euler–Lagrange approach",
Progress in Computational Fluid Dynamics, Vol. 7, Nos. 2/3/4, pp. 152-162
(download pdf)
Darmana, D., Henket, R.L.B., Deen, N.G. and Kuipers, J.A.M. (2007): "Detailed modelling of hydrodynamics, mass transfer and chemical reactions in a bubble column using a discrete bubble model: Chemisorption of CO2 into NaOH solution, numerical and experimental study"
Chemical Engineering Science, Volume 62, Pages 2556-2575
(download pdf)
Zhang, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Numerical simulation of the dynamic flow behavior in a bubble column: A study of closures for turbulence and interface forces"
Chemical Engineering Science, Volume 61, Issue 23, December 2006, Pages 7593-7608
(download pdf)
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Parallelization of an Euler–Lagrange model using mixed domain decomposition and a mirror domain technique: Application to dispersed gas–liquid two-phase flow",
Journal of Computational Physics, Volume 220, Issue 1, 20 December 2006, Pages 216-248
(download pdf)
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Detailed 3D Modeling of Mass Transfer Processes in Two-Phase Flows with Dynamic Interfaces",
Chem. Eng. Technol. 2006, 29(9), pp. 1027-1033
(download pdf)
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2006): "Detailed computational and experimental fluid dynamics of fluidized beds",
Applied Mathematical Modelling 30 (11), pp. 1459-1471
(download pdf)
van Sint Annaland, M., Dijkhuizen, W., Deen, N.G. and Kuipers, J.A.M. (2006): "Numerical simulation of gas bubbles behaviour using a 3D Front Tracking method",
AIChE Journal, Volume 52, Issue 1 , Pages 99-110
(download pdf)
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2005): "Numerical simulation of gas–liquid–solid flows using a combined front tracking and discrete particle method",
Chemical Engineering Science 60 (22), pp. 6188-6198
(download pdf)
Dijkhuizen, W., van den Hengel, E.I.V., Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2005): "Numerical investigation of closures for interface forces acting on single air-bubbles in water using Volume of Fluid and Front Tracking models",
Chemical Engineering Science 60 (22), pp. 6169-6175
(download pdf)
Bluemink, J.J., van Nierop, E.A., Luther, S., Deen, N.G., Magnaudet, J., Prosperetti, A., and Lohse, D. (2005): "Asymmetry-induced particle drift in a rotating flow",
Phys. Fluids, Vol. 17, paper 072106
(download pdf)
Link, J.M., Cuypers, L.A., Deen, N.G. and Kuipers, J.A.M. (2005): "Flow regimes in a spout-fluid bed: a combined experimental and simulation study",
Chem. Eng. Sci., Vol. 60, No. 13, pp. 3425-3442
(download pdf)
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2005): "Detailed Modeling of Hydrodynamics, Mass transfer and Chemical Reactions in a Bubble Column using a Discrete Bubble Model",
Chem. Eng. Sci., Vol. 60, No. 12, pp. 3383-3404
(download pdf)
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2005): "Numerical Simulation of Gas Bubbles Behaviour Using a Three-Dimensional Volume of Fluid Method",
Chem. Eng. Sci., Vol. 60, No. 10, pp. 2999-3011
(download pdf)
van den Hengel, E.I.V., Deen, N.G. and Kuipers, J.A.M. (2005): "Application of coalescence and breakup models in a discrete bubble model for bubble columns",
Ind. Eng. Chem. Res., 44(14); 5233-5245
(download pdf)
Li, T., Deen, N.G. and Kuipers, J.A.M. (2005): "Numerical Investigation of Hydrodynamics and Mass Transfer for In-Line Fiber Arrays in Laminar Cross-flow at Low Reynolds Numbers",
Chem. Eng. Sci., Vol. 60, No. 7, pp. 1837-1847
(download pdf)
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2004): "Multi-scale Modeling of Dispersed Gas-Liquid Two-Phase Flow",
Chem. Eng. Sci., Vol. 59, No. 8-9, pp. 1853-1861
(download pdf)
Link, J.M., Zeilstra, C., Deen, N.G. and Kuipers, J.A.M. (2004): "Validation of a discrete particle model in a 2D spout-fluid bed using non-intrusive optical measuring techniques",
Can. J. Chem. Eng., Vol. 82, No. 1, pp. 30-36
(download pdf)
Deen, N.G., Solberg, T. and Hjertager, B.H. (2002): "Flow generated by an aerated Rushton impeller: two-phase PIV experiments and numerical simulations",
Can. J. Chem. Eng., Vol. 80, No. 4, pp. 638-652
(download pdf)
Hjertager, L.K., Hjertager, B.H., Deen, N.G. and Solberg, T. (2003): "Measurement of turbulent mixing in a confined wake flow using combined PIV and PLIF",
Can. J. Chem. Eng., Vol. 81, No. 6, pp. 1149-1158
(download pdf)
Deen, N.G. and Hjertager, B.H. (2002): "Particle Image Velocimetry Measurements in an Aerated Stirred Tank",
Chem. Eng. Comm., Vol. 189, pp. 1208-1221
(download pdf)
Deen, N.G., Westerweel, J. and Delnoij, E. (2002): "Two-phase PIV of bubbly flows: status and trends",
Chem. Eng. Technol., Vol. 25, No. 1, pp. 97-101
(download pdf)
Deen, N.G., Solberg, T. and Hjertager, B.H. (2001): "Large Eddy Simulation of the Gas-Liquid Flow in a Square Cross-sectioned Bubble Column",
Chem. Eng. Sci., Vol. 56, pp. 6341-6349
(download pdf)
Delnoij, E., Westerweel, J., Deen, N.G., Kuipers, J.A.M. and van Swaaij, W.P.M. (1999): "Ensemble correlation PIV applied to bubble plumes rising in a bubble column",
Chem. Eng. Sci., Vol. 54, pp. 5159-5171
(download pdf)

Conference papers

Antonyuk, S., Heinrich, S., Dosta, M., van Buijtenen, M.S., Deen, N.G., Kuipers, J.A.M. (2009):: Effect of the liquid layer on the impact behaviour of particles
9th International Symposium on Agglomeration, 22 - 26 June 2009, Sheffield, UK.
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., Kuipers, J.A.M., Jacob, M. (2009):: Analysis of the fluidization behaviour and application of a novel spouted bed apparatus for spray granulation and coating
9th International Symposium on Agglomeration, 22 - 26 June 2009, Sheffield, UK.
(download pdf)
van Buijtenen, M.S., Börner, M., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2009):: An experimental study of the effect of collision properties on spout fluidized bed dynamics
9th International Symposium on Agglomeration, 22 - 26 June 2009, Sheffield, UK.
(download pdf)
Bai, W., Deen, N.G., Kuipers, J.A.M. (2009):: Bubble properties of heterogeneous bubbly flows in a square bubble column
International Symposium of Multiphase Flows, July 11-15, 2009, Xi'an, China
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2008): A discrete element study of wet particle-particle interaction during granulation in a spout fluidized bed,
Fifth International Symposium on Spouted Beds (ISSB-2008), July 21-23, 2008, Changping, Beijing, China
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., van Sint Annaland, M., Kuipers, J.A.M. (2008): Characterization and modeling of the pneumatic behavior of a novel spouted bed apparatus with two adjustable gas inlets,
Fifth International Symposium on Spouted Beds (ISSB-2008), July 21-23, 2008, Changping, Beijing, China
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2008): A Discrete Element Study of Moisture Dependent Particle-Particle Interaction During Granulation in a Spout Fluidized Bed,
6th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries Trondheim, Norway 10-12 June 2008
(download pdf)
Bai, W., Deen, N.G., Mudde, R.F. and Kuipers, J.A.M. (2008): Accuracy of four-point optical probe for determination of bubble velocity,
6th International Conference on Computational Fluid Dynamics in the Oil & Gas, Metallurgical and Process Industries Trondheim, Norway 10-12 June 2008
(download pdf)
Gryczka, O., Heinrich, S., Deen, N.G., Kuipers, J.A.M., Mörl, L. (2008): "Characterization of the pneumatic behavior of a novel spouted bed apparatus with two adjustable gas inlets",
Presentation at the 9th International Conference on Circulating Fluidized Beds (CFB9), Hamburg, Germany, May 13-16, 2008
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Antonyuk, S., Kuipers, J.A.M. (2008): "Improvement of the discrete element model for the study of granulation in a spout fluidized bed",
Presentation at the 9th International Conference on Circulating Fluidized Beds (CFB9), Hamburg, Germany, May 13-16, 2008
(download pdf)
He, Y., Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2008): "Gas-Solid Turbulent Flow in a Circulating Fluidized Bed Riser; Numerical Study of Binary Particle Mixtures",
Presentation at the 9th International Conference on Circulating Fluidized Beds (CFB9), Hamburg, Germany, May 13-16, 2008
(download pdf)
Godlieb, W., Deen, N.G. and Kuipers, J.A.M. (2007): "A discrete particle simulation study of solids mixing in a pressurized fluidized bed",
The 12th International Conference On Fluidization, May 13-17, 2007, couver, Canada
(download pdf)
Link, J.M., Godlieb, W., Tripp, P., Deen, N.G., Heinrich, S., Kuipers, J.A.M., Schönherr, M. and Peglow, M. (2007): "Comparison of Fibre Optical Measurements and Discrete Element Simulations for the Study of Granulation in a Spout Fluidized Bed",
3rd International Granulation Workshop, 27-29 June 2007, Sheffield, UK
(download pdf)
Darmana, D., Dijkhuizen, W., Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2007): "Detailed 3D Modelling of Mass Transfer Processes in Two Phase Flows with Dynamics Interfaces",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 264
(download pdf)
Zhang, D., Deen, N.G. and Kuipers, J.A.M. (2007): "Numerical modeling of hydrodynamics, mass transfer and chemical reaction in bubble columns",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 265
(download pdf)
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Kuipers, J.A.M., Tripp, P. and Schönherr, M. (2007): "Improvement of the discrete element model for the study of granulation in a spout fluidized bed",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 266
(download pdf)
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2007): "Numerical Simulation of Heat Transport in Dispersed Gas-Liquid Two-Phase Flow using a Front Tracking Approach",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 268
(download pdf)
Deen, N.G., van Sint Annaland, M. And Kuipers, J.A.M. (2007): "Numerical Simulation of Complex Multi-Fluid Flows using a Combined Immersed Boundary and Volume of Fluid Approach",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 270
(download pdf)
Deen, N.G., van Sint Annaland, M. And Kuipers, J.A.M. (2007): "Numerical Simulation of Particle Mixing in Dispersed Gas-Liquid-Solid Flows using a Combined Volume of Fluid and Discrete Particle Approach",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 271
(download pdf)
Godlieb, W., Deen, N.G., Kuipers, J.A.M. (2007): "Characterizing solids mixing in DEM simulations",
6th International Conference on Multiphase Flow, ICMF 2007, Leipzig, Germany, July 9 – 13, 2007, paper no. 272
(download pdf)
van Sint Annaland, M., Deen, N.G., van der Hoef, M.A. and Kuipers, J.A.M. (2007): "Multi-Scale Computational Fluid Dynamics for Dense Gas-Solid Flows using DEM as Numerical Laboratory",
DEM-Simulation in der Partikeltechnik – zwischen Prozessgrundlagen und Marketing, Magdeburg, Germany, 13-14 September 2007
(download pdf)
Heinrich, S., Deen, N.G., van Buijtenen, M.S., Kuipers, J.A.M., Tripp, P., Schönherr, M. and Peglow, M. (2007): "Detailed investigation of granulation processes using a fibre-optical probe and discrete element simulations",
3rd International Conference on Population Balance Modelling, September 19–21, 2007, Québec City - Canada
Zhang, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Numerical simulation of small bubble-big bubble-liquid three-phase flows",
Benelux ANSYS and CFX User Meeting, Breda, The Netherlands, 3 November 2006
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2006): "Direct Numerical Simulation Of Heat Transport In Dispersed Gas-Liquid Two-Phase Flow Using A Front Tracking Approach",
Fifth International Conference On Computational Fluid Dynamics in the Process Industries, 13-15 December 2006, Hilton on the Park, Melbourne, Australia
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2006): "Direct Numerical Simulation Of Complex Gas-Liquid-Solid Flows Using A Combined Immersed Boundary (Ib) And Volume Of Fluid (Vof) Approach",
Fifth International Conference On Computational Fluid Dynamics in the Process Industries, 13-15 December 2006, Hilton on the Park, Melbourne, Australia
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2006): "Direct Numerical Simulation Of Particle Mixing In Dispersed Gas-Liquid-Solid Flows Using A Combined Volume Of Fluid And Discrete Particle Approach",
Fifth International Conference On Computational Fluid Dynamics in the Process Industries, 13-15 December 2006, Hilton on the Park, Melbourne, Australia
Godlieb, W., Deen, N.G. and Kuipers, J.A.M. (2006): "Discrete particle simulations of high pressure fluidization",
CHISA 17th International Congress Of Chemical And Process Engineering, 27-31 August 2006, Prague - Czech Republic, paper 856
Zhang, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Three-fluid modelling of the heterogeneous flow in bubble columns",
CHISA 17th International Congress Of Chemical And Process Engineering, 27-31 August 2006, Prague - Czech Republic, paper 1298
Link, J.M., Godlieb, W., Deen, N.G., Heinrich, S., Tripp, P., Peglow, M., Kuipers, J.A.M., Schönherr, M. and Mörl, L. (2006): "Discrete element modeling and fibre optical measurements for fluidized bed spray granulation",
15th International Drying Symposium, Budapest, Hungary 20-23 August 2006 (paper A 0315)
van Sint Annaland, M., Deen, N.G., Kuipers, J.A.M. (2006): "DNS of complex gas-liquid-solid flows using a combined immersed boundary (IB) and volume of fluid (VOF) approach",
Euromech Colloquium 479, Numerical Simulation of Multiphase Flow with Deformable Interfaces, August 14-16th, 2006, The Pier, Scheveningen, The Netherlands
(download pdf)
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2006): "DNS of particle mixing in dispersed gas-liquid-solid flows using a combined VOF and discrete particle approach",
Euromech Colloquium 479, Numerical Simulation of Multiphase Flow with Deformable Interfaces, August 14-16th, 2006, The Pier, Scheveningen, The Netherlands
(download pdf)
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2006): "Detailed 3D modelling of mass transfer processes in two-phase flows with dynamic interfaces",
Bubble Columns 2006, 7th German / Japanese Symposium on Bubble Columns, Goslar, Germany, 20 - 23 May 2006
He, Y., van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2006): "Gas-Solid Two-Phase Turbulent Flow in a Circulating Fluidized Bed Riser: an Experimental and Numerical Study",
WCPT5: 5th World Congress on Particle Technology, 23 April 2006, Orlando, Florida, United States
Link, J.M., Godlieb, W., Tripp, P., Deen, N.G., Heinrich, S., Peglow, M., Kumar, J., Kuipers, J.A.M., Schönherr, M. and Mörl, L. (2006): "Comparison of Fibre Optical Measurements and Discrete Element Simulations for the Study of Granulation in a Spout Fluidized Bed",
WCPT5: 5th World Congress on Particle Technology, 23 April 2006, Orlando, Florida, United States
Darmana, D., Henket, R.L.B., Deen, N.G. and Kuipers, J.A.M. (2005): "Validation of a discrete bubble model for chemisorption in a bubble column reactor",
43rd European Two-Phase Flow Group Meeting 2005 ETPFGM '05, May 1-13, 2005, Praha, Czech Republic
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2005): "Parallelization of an Euler-Lagrange model using a mixed domain decomposition and mirror domain technique: application to dispersed gas liquid two phase flow",
Computational Fluid Dynamics in Chemical Reaction Engineering IV, June 19-24, 2005, Barga, Italy
Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2005): "Experimental and numerical investigations of a chemisorption process in a bubble column reactor",
7th World Congress of Chemical Engineering, 10-14 July 2005, Glasgow, Scotland
Link, J.M., Fan, X., Wood, J., Deen, N.G., Ingram, A., Parker, D.J. and Kuipers, J.A.M.(2005): "Comparison of PEPT measurements and discrete particle simulations in a rectangular 3D spout-fluid bed",
7th World Congress of Chemical Engineering, 10-14 July 2005, Glasgow, Scotland
van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2005): "Direct numerical simulation of three-dimensional gas-liquid-solid flow using a combined front tracking and discrete particle approach",
7th conference on Gas-Liquid & Gas-Liquid-Solid reactor engineering, Strasbourg, France, August 21-24, 2005
Zhang, D., Deen, N.G. and Kuipers, J.A.M. (2005): "Numerical simulation of the dynamic flow behaviour in a bubble column: comparison of the bubble-induced turbulence models in K-epsilon model",
CFD 2005 - fourth International Conference on Computational Fluid Dynamics in the Oil and Gas, Metallurgical & Process Industries
Link, J.M., Deen, N.G. and Kuipers, J.A.M. (2004): "Comparison of PIV measurements and a discrete particle model in a rectangular 3D spout-fluid bed",
Proceedings of Fluidization XI, May 9-14, 2004, Naples, Italy, pp. 539-546
(download pdf, 362 KB)
Deen, N.G., Dijkhuizen, W., Bokkers, G.A., van Sint Annaland, M. and Kuipers, J.A.M. (2004): "Validation of the granular temperature prediction of the kinetic theory of granular flow by particle image velocimetry and a discrete particle model",
Proceedings of the 3rd Int. Symposium on Two-Phase Flow Modelling and Experimentation, Pisa, 22-24 September 2004
(download pdf, 1.77 MB)
Deen, N.G., van den Hengel, E.I.V., van Sint Annaland, M. and Kuipers, J.A.M. (2004): "Multi-Scale Modeling of Dispersed Gas-Liquid Two-Phase Flows",
5th International Conference on Multiphase Flow, ICMF’04, Yokohama, Japan, May 30-June 4, 2004, Paper No. K07.
(download pdf, 763 KB)
Darmana, D., Deen, N.G., and Kuipers, J.A.M. (2004): "Modeling of Mass transfer and Chemical Reactions in a Bubble Column Reactor Using a Discrete Bubble Model",
5th International Conference on Multiphase Flow, ICMF’04, Yokohama, Japan, May 30–June 4, 2004, Paper No. 328.
(download pdf, 1.26 MB)
Link, J.M., Deen, N.G., and Kuipers, J.A.M. (2004): "Discrete Particle Simulation of a Spout-Fluid Bed: Treatment of two-way Coupling and Effect of Drag Closure",
5th International Conference on Multiphase Flow, ICMF’04, Yokohama, Japan, May 30–June 4, 2004, Paper No. 457.
(download pdf, 480 KB)
Li, T., Deen, N.G. and Kuipers, J.A.M. (2003): "Numerical Study of Hydrodynamics and Mass Transfer of in-line Fiber Arrays in Laminar Cross-Flow",
Third International Conference on CFD in the Minerals and Process Industries CSIRO, 10-12 December 2003, Melbourne, Australia.
(download pdf, 1.77 MB)
Vreman, A.W., Geurts, B., Deen, N.G. and Kuipers, J.A.M. (2003): "Large-eddy simulation of a four-way coupled particle-laden turbulent channel flow",
Workshop Direct and Large-Eddy Simulation-V, August 27-29, 2003, Garching, Germany
(download pdf, 189 KB)
Deen, N.G., Solberg, T. and Hjertager, B.H. (2003): "Flow Generated by an Aerated Rushton Impeller: Two-Phase PIV Experiments and Numerical Simulations",
Computational Fluid Dynamics in Chemical Reaction Engineering III, May 25-30, 2003, Davos, Switzerland
van den Hengel, E.I.V., Darmana, D., Deen, N.G. and Kuipers, J.A.M. (2003): "Large Eddy Simulation of a Bubble Column Reactor using the Euler-Lagrange Approach",
Computational Fluid Dynamics in Chemical Reaction Engineering III, May 25-30, 2003, Davos, Switzerland
Vreman, A.W., Geurts, B., Deen, N.G. and Kuipers, J.A.M. (2003): "Large-eddy simulation of particle-laden turbulent channel flow",
Computational Fluid Dynamics in Chemical Reaction Engineering III, May 25-30, 2003, Davos, Switzerland
Link, J.M., Deen, N.G. and Kuipers, J.A.M. (2002): "Detailed Validation of a CFD Model Describing a Pseudo-2D Spout-Fluid Bed",
Fluid-Particle Interactions VI, Barga, Italy.
Deen, N.G., Westerweel, J. and Hjertager, B.H. (2001): "Upper Limit of the Gas Fraction in PIV Measurements in Dispersed Gas-Liquid Flows",
GLS5, 5th Int. Conf. on Gas-Liquid and Gas-Solid-Liquid Reactor Engineering, Aug. 2001, Melbourne, Australia
(download pdf, 303 KB)
Deen, N.G., Solberg, T. and Hjertager, B.H. (2001): "Large Eddy Simulation of the Gas-Liquid Flow in a Square Cross-sectioned Bubble Column",
GLS5, 5th Int. Conf. on Gas-Liquid and Gas-Solid-Liquid Reactor Engineering, Aug. 2001, Melbourne, Australia
(download pdf, 367 KB)
Deen, N.G., Solberg, T. and Hjertager, B.H. (2000): "Numerical Simulations of the Gas-Liquid Flow in 3-Dimensional Rectangular Bubble Columns",
CRE VII: CFD, Quebec City, Canada
Deen, N.G., Solberg, T. and Hjertager, B.H. (2000): "Numerical Simulation of the Gas-Liquid Flow in a Square Cross-sectioned Bubble Column",
CHISA 14th Int. Congress of Chemical and Process Engineering, Praha, Czech Republic
(download pdf, 399 KB)
Deen, N.G., Hjertager, B.H. and Solberg, T. (2000): "Comparison of PIV and LDA Measurement Methods Applied to the Gas-Liquid Flow in a Bubble Column",
10th Int. Symp. on Appl. of Laser Techniques to Fluid Mech., Lisbon, Portugal
(download pdf, 180 KB)
Deen, N.G. and Hjertager, B.H. (1999): "Multiphase Particle Image Velocimetry Measurements in an Aerated Stirred Tank",
AIChE Annual Meeting, Dallas, TX, USA
(download paper, pdf, 550 KB or presentation, pdf, 3.5 MB)
Delnoij, E., Westerweel, J., Deen, N.G., Kuipers, J.A.M. and van Swaaij, W.P.M. (1999): "Ensemble correlation PIV applied to bubble plumes rising in a bubble column",
GLS4, 4th Int. Conf. on Gas-Liquid and Gas-Solid-Liquid Reactor Engineering, Aug. 1999, Delft, The Netherlands
(download pdf, 1.1 MB)

Invited lectures

Van der Hoef, M.A., van Sint Annaland, M., Deen, N.G. and Kuipers, J.A.M. (2008): Multi-scale simulation of poly-disperse, dense gas-particle flows,
Computational Fluid Dynamics in Chemical Reaction Engineering IV, June 15-20, 2008, Whistler, British Columbia, Canada
Deen, N.G., Dijkhuizen, W., Darmana, D., van Sint Annaland, M. and Kuipers, J.A.M. (2008): DNS of deformable bubbles,
Thematic JMBC Workshop on Modelling and Measuring of Multi-phase Flow Phenomena in Micro-fluidic and thin-film systems, June 19, 2008, Leiden, The Netherlands
Deen, N.G., van Sint Annaland, M. and Kuipers, J.A.M. (2008): "Multi-scale modeling of bubbly flows: from fundamentals to practice",
Invited lecture, Physics@FOM, Veldhoven 22 January 2008
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Tripp, P., Kuipers, J.A.M., Schönherr, M., Peglow, M. (2007): "Optimierung eines Diskreten-Elemente-Modells und Vergleich mit faseroptischen Messungen zur Analyse der Granulation in einer Wirbelschicht",
Plenary lecture at the "Arbeitstagung des GVC-Fachausschusses Trocknungstechnik", Stuttgart, Germany, 7-9 March 2007
van Buijtenen, M.S., Deen, N.G., Heinrich, S., Tripp, P., Kuipers, J.A.M., Schönherr, M., Peglow, M. (2007): "Analyse der Partikel- und Tropfenbewegungen in einer bedüsten Wirbelschicht mittels Diskrete-Elemente-Modellierung und faseroptischen Messungen",
Plenary lecture at the "Arbeitstagung des GVC-Fachausschusses Agglomerations- und Schüttguttechnik", Dresden, Germany, 12-14 March 2007
Deen, N.G., van Sint Annaland, M., van der Hoef, M.A. and Kuipers, J.A.M. (2006): "Multi-scale modelling of fluidised beds",
Innovation Forum Fluidised Bed Technology, 28th and 29th August 2006, Magdeburg, Germany
Deen, N.G., van den Hengel, E.I.V., van Sint Annaland, M. and Kuipers, J.A.M. (2004): "Multi-Scale Modeling of Dispersed Gas-Liquid Two-Phase Flows",
5th International Conference on Multiphase Flow, ICMF’04, Yokohama, Japan, May 30–June 4, 2004, Paper No. K07.
(download pdf, 763 KB)
Deen, N.G., van Sint Annaland, M., and Kuipers, J.A.M. (2003): "Detailed Computational and Experimental Fluid Dynamics of Fluid Beds",
Third International Conference on CFD in the Minerals and Process Industries CSIRO, 10-12 December 2003, Melbourne, Australia.
(download pdf, 1.72 MB)
Deen, N.G. (2000): "Discussion of PIV Methods for Bubbly Flows",
Dortmund University, Germany, December 13, 2000.
Deen, N.G. (2000): "An Experimental and Computational Study of Fluid Dynamics in Gas-Liquid Chemical Reactors",
Delft University, The Netherlands, October 6, 2000.

Reports

Deen, N.G. (1999): "Multiphase Particle Image Velocimetry Measurements in a Bubble Column",
internal report, Aalborg University Esbjerg, Denmark (download pdf, 11 KB)

Animations of Ph.D. work 2001

Simulated iso-surfaces of turbulent kinetic energy in a stirred tank (gif, 276 KB.)

The simulated single-phase flow in a stirred tank is shown. The 0.065 m²/s² turbulent kinetic energy isosurface is shown in yellow. In the background a contour plot of the turbulent kinetic energy in a vertical plane is shown. This plane contains a baffle.

Simulated velocity fields in a stirred tank (gif, 53 KB.)

The simulated single-phase flow in the vicinity of a Rushton impeller is shown. The passage of an impeller blade can clearly be inferred. The results are angle resolved averages of 10 rotations. Flowfields are taken at 0, 10, 20, 30, 40 and 50 degrees behind the impeller blad. The impeller blade is moving into the field of view.

Simulated iso-surfaces of gas holdup and turbulent kinetic energy in an aerated stirred tank (gif, 247 KB.)

The simulated gas-liquid flow in an aerated stirred tank is shown. The 20% gas volume fraction isosurface is shown in blue. The 0.2 m²/s² turbulent kinetic energy isosurface is shown in yellow. In the background a contour plot of the turbulent kinetic energy in a vertical plane is shown. This plane contains a baffle.

Simulated liquid and gas velocity fields in an aerated stirred tank (gif, 57 and 73 KB.)

The simulated gas-liquid flow in the vicinity of a Rushton impeller is shown. The passage of an impeller blade can clearly be inferred. The results are angle resolved averages of 10 rotations. Flowfields are taken at 0, 10, 20, 30, 40 and 50 degrees behind the impeller blad. The impeller blade is moving into the field of view.

Experimental vorticity and streamlines in a stirred tank (avi, ~100 KB.)

The vorticity and streamlines of a single-phase flow in the vicinity of a Rushton impeller, determined with PIV are shown. The passage of an impeller blade can clearly be inferred. The results are angle resolved averages of 200 PIV recordings. Measurements are taken at 0, 10, 20, 30, 40 and 50 degrees behind the impeller blad. The impeller blade is moving into the field of view.

Experimental vorticity and streamlines in an aerated stirred tank (avi, ~100 KB.)

The vorticity and streamlines of the liquid phase in a gas-liquid flow in the vicinity of a Rushton impeller, determined with PIV are shown. The passage of an impeller blade can clearly be inferred. The results are angle resolved averages of 200 PIV recordings. Measurements are taken at 0, 10, 20, 30, 40 and 50 degrees behind the impeller blad. The impeller blade is moving into the field of view.

Bubble plume (gif, 1.3 MB. or avi, 1.9 MB)
Simulation of the gas-liquid flow in a square Bubble Column. Geometry of 0.15 x 0.15 x 0.45 m (w x d x l) and a central gas inlet with a superficial gas velocity of 0.49 cm/s. The real time gas volume fraction and liquid velocity are displayed during 5 seconds. The animation has a frame rate of 10 Hz. This problem was simulated with the multifluid model in CFX 4.3, using 32 x 32 x 45 gridcells and timesteps of 0.005 s. The drag, lift and virtual-mass forces were taken into account. The turbulence was simulated with a Smagorinsky LES model.
More specific information about the simulated problem can be found in Deen et al. (2001)

Bubble plume (gif, 1.0 MB.)
Simulation of the "Becker case". Geometry of 50 x 8 x 150 mm (w x d x l) and a decentral gas inlet with a gas flow rate of 1.6 l/min. The gas volume fraction during 80 seconds is displayed. Each frame corresponds to 1 seconds real time.
This problem was simulated with the multifluid model in CFX 4.2, using 50 x 8 x 150 gridcells and timesteps of 0.01 s. The turbulence was simulated with the k-epsilon model.
More specific information about the simulated problem can be found in the paper by Sokolichin, A. and Eigenberger, G. (1999) Applicability of the standard k-epsilon turbulence model to the dynamic simulation of bubble columns: Part I. Detailed numerical simulations, Chem. Eng. Sci., vol. 54, p. 2273-2284.

Personal links

EFD and CFD groups:

Research institutes:

Research collaborations:

EFD and CFD companys:

Journals:

Agenda

Nov. 6th, 2009 - 11:00
Lecture Dr. Bredesen, in ZH 286

Nov. 18th, 2009 - 16:30
Vlugterlecture Yuk-Man

Nov. 19th, 2009 - 16:00
Good-bye reception Gerrit

Nov. 27th, 2009 - 16:00
Master defense Roeland

Dec. 2nd, 2009 - 16:00
Vlugterlecture Tom

Dec. 4th, 2009
PhD Defense Zeljko Kotanjac

Upcoming Conferences

7-8/9-11 December 2009
MFM-2009 and CFD-2009

13 January, 2010
Burgersdag 2010

19-20 January, 2010
Physics@FOM Veldhoven

26-29 April 2010
WCPT-6

10-12 May 2010
Jahrestreffen Reaktionstechnik 2010

16-20 May 2010
Fluidization XIII

30 May - 4 June 2010
ICMF-2010

13-16 June 2010
ISCRE-21

Fundamentals of Chemical Reaction Engineering

UNIVERSITY OF TWENTE. FACULTY OF SCIENCE & TECHNOLOGY