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**Harvard**

Khalilitehrani, M., Rasmuson, A., Abrahamsson, P. och Gómez Fino, E. (2015) *Continuum modeling of multi-regime particle flows in high-shear mixing*.

** BibTeX **

@article{

Khalilitehrani2015,

author={Khalilitehrani, Mohammad and Rasmuson, Anders and Abrahamsson, Per and Gómez Fino, Eva Maria},

title={Continuum modeling of multi-regime particle flows in high-shear mixing},

journal={Powder Technology},

issn={0032-5910},

volume={280},

pages={67-71},

abstract={This article compares and evaluates different approaches for continuum modeling in high shear mixers covering
the full range of the solid volume fraction. High shear mixing is considered as the first stage in industrial high
shear granulation processes. The study is focused on and compared with experimental data for a MiPro mixer.
Different granular flow regimes are located in different regions of the system and suitable models are applied
for each region. Accordingly, the dilute regions are modeled with the standard kinetic theory of granular flow
(KTGF) model. The dense regions are modeled using a framework developed by Jop et al. [1] which treats
dense flows with pseudo-plastic rheology. The transitional region from dilute to dense is either modeled with
KTGF or by using modifications to the transport coefficients that describe the solid phase stresses as proposed
by Bocquet et al. [2] (the viscosity divergence model). The results using the latter model show significant improvement
compared to similar studies in the past. A very good agreement between simulation and experiments
is achieved. It should be noted that the proposed modeling frameworks are formulated for the full range of
volume fractions and can be applied to various particulate flows. To sum up, this research provides a better
description of multi-regime granular flows, particularly the transitional behavior in the intermediate range of
volume fractions},

year={2015},

keywords={High shear mixing, Continuum modeling, Viscosity divergence model, Rheology model, KTGF},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 217832

A1 Khalilitehrani, Mohammad

A1 Rasmuson, Anders

A1 Abrahamsson, Per

A1 Gómez Fino, Eva Maria

T1 Continuum modeling of multi-regime particle flows in high-shear mixing

YR 2015

JF Powder Technology

SN 0032-5910

VO 280

SP 67

OP 71

AB This article compares and evaluates different approaches for continuum modeling in high shear mixers covering
the full range of the solid volume fraction. High shear mixing is considered as the first stage in industrial high
shear granulation processes. The study is focused on and compared with experimental data for a MiPro mixer.
Different granular flow regimes are located in different regions of the system and suitable models are applied
for each region. Accordingly, the dilute regions are modeled with the standard kinetic theory of granular flow
(KTGF) model. The dense regions are modeled using a framework developed by Jop et al. [1] which treats
dense flows with pseudo-plastic rheology. The transitional region from dilute to dense is either modeled with
KTGF or by using modifications to the transport coefficients that describe the solid phase stresses as proposed
by Bocquet et al. [2] (the viscosity divergence model). The results using the latter model show significant improvement
compared to similar studies in the past. A very good agreement between simulation and experiments
is achieved. It should be noted that the proposed modeling frameworks are formulated for the full range of
volume fractions and can be applied to various particulate flows. To sum up, this research provides a better
description of multi-regime granular flows, particularly the transitional behavior in the intermediate range of
volume fractions

LA eng

DO 10.1016/j.powtec.2015.04.040

LK http://dx.doi.org/10.1016/j.powtec.2015.04.040

OL 30