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Research Output 2009 2019

2019

110th Anniversary: Effect of System Size on Boundary-Driven Contact Charging in Particulate Flows

Kolehmainen, J., Ceresiat, L., Ozel, A. & Sundaresan, S., 25 Sep 2019, In : Industrial and Engineering Chemistry Research. 58, 38, p. 17980-17990 11 p.

Research output: Contribution to journalArticle

particulates
charging
tubes
two fluid models
granular materials

Computationally generated constitutive models for particle phase rheology in gas-fluidized suspensions

Gu, Y., Ozel, A., Kolehmainen, J. & Sundaresan, S., 10 Feb 2019, In : Journal of Fluid Mechanics. 860, p. 318-349 32 p.

Research output: Contribution to journalArticle

Open Access
File
rheology
gases
granular materials
kinetic theory
simulation

Neural-network-based filtered drag model for gas-particle flows

Jiang, Y., Kolehmainen, J., Gu, Y., Kevrekidis, Y. G., Ozel, A. & Sundaresan, S., 15 Mar 2019, In : Powder Technology. 346, p. 403-413 11 p.

Research output: Contribution to journalArticle

Drag
Neural networks
Gases
Fluids
Pressure gradient
2018

Effects of Polarization on Particle-Laden Flows

Kolehmainen, J., Ozel, A., Gu, Y., Shinbrot, T. & Sundaresan, S., 21 Sep 2018, In : Physical Review Letters. 121, 12, 124503.

Research output: Contribution to journalArticle

Open Access
File

Eulerian modelling of gas–solid flows with triboelectric charging

Kolehmainen, J., Ozel, A. & Sundaresan, S., 10 Aug 2018, In : Journal of Fluid Mechanics. 848, p. 340-369

Research output: Contribution to journalArticle

Open Access
File

Experimental and numerical study of wall layer development in a tribocharged fluidized bed

Sippola, P., Kolehmainen, J., Ozel, A., Liu, X., Saarenrinne, P. & Sundaresan, S., 25 Aug 2018, In : Journal of Fluid Mechanics. 849, p. 860-884

Research output: Contribution to journalArticle

Open Access
File

Toward Constitutive Models for Momentum, Species, and Energy Transport in Gas–Particle Flows

Sundaresan, S., Ozel, A. & Kolehmainen, J., 7 Jun 2018, In : Annual Review of Chemical and Biomolecular Engineering. 9

Research output: Contribution to journalArticle

Technology Transfer
Energy Transfer
Learning
Dependency (Psychology)
2017

Analysis of the effect of small amounts of liquid on gas–solid fluidization using CFD-DEM simulations

Boyce, C. M., Ozel, A., Kolehmainen, J. & Sundaresan, S., 21 Jun 2017, In : AIChE Journal.

Research output: Contribution to journalArticle

fluidization
digital elevation model
liquid
simulation
surface tension

Effective particle diameters for simulating fluidization of non-spherical particles: CFD-DEM models vs. MRI measurements

Boyce, C. M., Ozel, A., Rice, N. P., Rubinstein, G. J., Holland, D. J. & Sundaresan, S., Jul 2017, In : AIChE Journal. 63, 7, p. 2555-2568 14 p.

Research output: Contribution to journalArticle

magnetic resonance
fluids
beds
simulation
drag

Effect of humidity on triboelectric charging in a vertically vibrated granular bed: Experiments and modeling

Kolehmainen, J., Sippola, P., Raitanen, O., Ozel, A., Boyce, C. M., Saarenrinne, P. & Sundaresan, S., 14 Dec 2017, In : Chemical Engineering Science. 173, p. 363-373 11 p.

Research output: Contribution to journalArticle

charging
humidity
beds
containers
glass

Growth and breakup of a wet agglomerate in a dry gas--solid fluidized bed

Boyce, C. M., Ozel, A., Kolehmainen, J., Sundaresan, S., McKnight, C. A. & Wormsbecker, M., Jul 2017, In : AIChE Journal. 63, 7, p. 2520–2527 8 p.

Research output: Contribution to journalArticle

Fluidized beds
Liquids
Gases
Surface tension
Computational fluid dynamics

Lattice Boltzmann simulations of low-Reynolds-number flows past fluidized spheres: effect of inhomogeneities on the drag force

Rubinstein, G. J., Ozel, A., Yin, X., Derksen, J. J. & Sundaresan, S., 25 Dec 2017, In : Journal of Fluid Mechanics. 833, p. 599-630 32 p.

Research output: Contribution to journalArticle

Open Access
File
low Reynolds number
drag
inhomogeneity
simulation
fluids

Particle resolved direct numerical simulation of a liquid-solid fluidized bed: Comparison with experimental data

Ozel, A., de Motta, J. C. B., Abbas, M., Fede, P., Masbernat, O., Vincent, S., Estivalezes, J-L. & Simonin, O., Mar 2017, In : International Journal of Multiphase Flow. 89, p. 228-240 13 p.

Research output: Contribution to journalArticle

direct numerical simulation
beds
liquids
simulation
kinetic energy

Towards filtered drag force model for non-cohesive and cohesive particle-gas flows

Ozel, A., Gu, Y., Milioli, C. C., Kolehmainen, J. & Sundaresan, S., 31 Oct 2017, In : Physics of Fluids. 29, 10, 103308.

Research output: Contribution to journalArticle

Open Access
File
drag
gas flow
grids
scalars
solids flow

Triboelectric charging of monodisperse particles in fluidized beds

Kolehmainen, J., Ozel, A., Boyce, C. M. & Sundaresan, S., Jun 2017, In : AIChE Journal. 63, 6, p. 1872-1891 20 p.

Research output: Contribution to journalArticle

charging
beds
particle charging
hydrodynamics
electric fields
2016

A hybrid approach to computing electrostatic forces in fluidized beds of charged particles

Kolehmainen, J., Ozel, A., Boyce, C. M. & Sundaresan, S., Jul 2016, In : AIChE Journal. 62, 7, p. 2282-2295 14 p.

Research output: Contribution to journalArticle

beds
charged particles
electrostatics
capture effect
electric charge

A modified cohesion model for CFD-DEM simulations of fluidization

Gu, Y., Ozel, A. & Sundaresan, S., Aug 2016, In : Powder Technology. 296, p. 17-28 12 p.

Research output: Contribution to journalArticle

cohesion
charge flow devices
simulation
stiffness
flow distribution

Fluid and particle coarsening of drag force for discrete-parcel approach

Ozel, A., Kolehmainen, J., Radl, S. & Sundaresan, S., 10 Aug 2016, In : Chemical Engineering Science. 155, p. 258-267 10 p.

Research output: Contribution to journalArticle

Intrusion of a Liquid Droplet into a Powder under Gravity

Boyce, C. M., Ozel, A. & Sundaresan, S., 30 Aug 2016, In : Langmuir. 32, 34, p. 8631-8640 10 p.

Research output: Contribution to journalArticle

intrusion
gravitation
liquids
beds
fluids

Magnetic resonance characterization of coupled gas and particle dynamics in a bubbling fluidized bed

Boyce, C. M., Rice, N. P., Ozel, A., Davidson, J. F., Sederman, A. J., Gladden, L. F., Sundaresan, S., Dennis, J. S. & Holland, D. J., Nov 2016, In : Physical Review Fluids. 1, 7, 074201.

Research output: Contribution to journalArticle

gas dynamics
magnetic resonance
beds
gases
interstices

Numerical studies of the effects of fines on fluidization

Gu, Y., Ozel, A. & Sundaresan, S., Jul 2016, In : AIChE Journal. 62, 7, p. 2271-2281 11 p.

Research output: Contribution to journalArticle

fines
bubbles
Van der Waals forces
beds
voids

Rheology of granular materials with size distributions across dense-flow regimes

Gu, Y., Ozel, A. & Sundaresan, S., Jul 2016, In : Powder Technology. 295, p. 322-329 8 p.

Research output: Contribution to journalArticle

granular materials
rheology
shear flow
stress ratio
skewness
2015

The Effect Liquid Loading on the Rheology of Granular Flows

Ozel, A., Gu, Y., Radl, S., Sundaresan, S. & Collaboration, C., 3 Mar 2015, In : Bulletin of the American Physical Society. 60, 1

Research output: Contribution to journalArticle

rheology
liquid bridges
liquids
cohesion
shear
2013

3D Numerical Simulation of Catalyst Injection into a Dense Fluidized Bed

Zeren, Z., Özel, A., Sarthou, A., Fede, P., Neau, H., Simonin, O., Chamayou, J-L. & Ghouila, I., 2013.

Research output: Contribution to conferencePaper

Open Access
File
Fluidized beds
Nozzles
Catalysts
Computer simulation
Ethylene
simulation
mesh size
size structure
momentum
convection

Effect of unresolved structures on the Euler-Euler simulation of 3D periodic circulating fluidized of binary mixture

Özel, A., Fede, P. & Simonin, O., 2013.

Research output: Contribution to conferencePaper

Open Access
File
Binary mixtures
Fluidized beds
Flow of solids
Momentum transfer
Gases

Fully Resolved Direct Numerical Simulation of a Liquid Fluidized Bed

Ozel, A., Masbernat, O., Estivalezes, J-L., Vincent, S., Abbas, M., Simonin, O. & de Motta, J. C. B., Jun 2013. 7 p.

Research output: Contribution to conferencePaper

Open Access
File
direct numerical simulation
beds
liquids
coronas
simulation

Numerical Simulation of Liquid Injection into an Anisothermal Dense Fluidized Bed

Özel, A., Sarthou, A., Zeren, Z., Fede, P., Simonin, O., Ghouila, I. & Chamayou, J-L., 2013.

Research output: Contribution to conferencePaper

Open Access
File
liquid injection
beds
gas temperature
simulation
heat transfer
2012
Open Access
File
Fluidized beds
Catalytic cracking
Kinetic theory
Fluids
Drag
2011
Large eddy simulation
Fluidized beds
Shear stress
Volume fraction
Flow of solids

Simulation aux grandes échelles des lits fluidisés circulants gaz-particule

Translated title of the contribution: Development of Large Eddy Simulation Approach for Simulation of Circulating Fluidized BedsÖzel, A., 2011, 137 p.

Research output: ThesisDoctoral Thesis

Open Access
2010

A priori test of effective drag modeling for filtered two-fluid model simulation of circulating and dense gas-solid fluidized beds

Ozel, A., Parmentier, J-F., Simonin, O. & Fede, P., Jan 2010. 7 p.

Research output: Contribution to conferencePaper

Fluidized beds
Drag
Fluids
Volume fraction
Gases
2009

3D Numerical Prediction of Gas-Solid Flow Behavior in CFB Risers for Geldart A and B Particles

Özel, A., Fede, P. & Simonin, O., 2009, Proceedings of the 20th International Conference on Fluidized Bed Combustion. Springer, p. 805-811 7 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

solids flow
risers
predictions
gases
turbulence