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Discrete element method for multiscale modelling

Discrete element method for multiscale modelling
Discrete element method for multiscale modelling
A discrete element method (DEM) has been developed to provide highly accurate and detailed predictions of the Lagrangian particle phase. Especially in this study, DEM has been used together with an Eulerian approach for the fluid phase to look at interphase exchange phenomena in a multiphase-multiscale modeling approach. The drying process inside a fluidized bed coffee bean roaster has been chosen. Herein, heat, mass, and momentum transport are solved on a fluid cell level; heat, mass, and momentum transfer coefficients are solved at a particle scale level; and 1D temperature and moisture content profiles are solved inside each coffee bean on a sub-particle scale level. Therefore, this multiscale approach provides much more information compared to existing coffee bean roaster models. In this work, a detailed description of this method is provided and results on different scale levels have been discussed. Modeling data and experimental results are compared and found to be in good agreement
1756-9737
147-162
Brunchmuller, J.
85a4c922-5ce6-4d96-a8c6-9cc07a81793f
Gu, S.
a6f7af91-4731-46fe-ac4d-3081890ab704
van Wachem, B.G.M
f393865e-91f5-411d-abea-3c596dec4f12
Luo, K.H.
1c9be6c6-e956-4b12-af13-32ea855c69f3
Brunchmuller, J.
85a4c922-5ce6-4d96-a8c6-9cc07a81793f
Gu, S.
a6f7af91-4731-46fe-ac4d-3081890ab704
van Wachem, B.G.M
f393865e-91f5-411d-abea-3c596dec4f12
Luo, K.H.
1c9be6c6-e956-4b12-af13-32ea855c69f3

Brunchmuller, J., Gu, S., van Wachem, B.G.M and Luo, K.H. (2011) Discrete element method for multiscale modelling. Journal of Multiscale Modelling, 4 (1-2), 147-162. (doi:10.1142/S1756973710000254).

Record type: Article

Abstract

A discrete element method (DEM) has been developed to provide highly accurate and detailed predictions of the Lagrangian particle phase. Especially in this study, DEM has been used together with an Eulerian approach for the fluid phase to look at interphase exchange phenomena in a multiphase-multiscale modeling approach. The drying process inside a fluidized bed coffee bean roaster has been chosen. Herein, heat, mass, and momentum transport are solved on a fluid cell level; heat, mass, and momentum transfer coefficients are solved at a particle scale level; and 1D temperature and moisture content profiles are solved inside each coffee bean on a sub-particle scale level. Therefore, this multiscale approach provides much more information compared to existing coffee bean roaster models. In this work, a detailed description of this method is provided and results on different scale levels have been discussed. Modeling data and experimental results are compared and found to be in good agreement

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Published date: March 2011

Identifiers

Local EPrints ID: 184401
URI: https://eprints.soton.ac.uk/id/eprint/184401
ISSN: 1756-9737
PURE UUID: 5e93b8f3-f71a-4514-879f-f206da2ab45b

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Date deposited: 06 May 2011 08:07
Last modified: 18 Jul 2017 11:51

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Contributors

Author: J. Brunchmuller
Author: S. Gu
Author: B.G.M van Wachem
Author: K.H. Luo

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