University of Surrey

Test tubes in the lab Research in the ATI Dance Research

Discrete Element Method for Multiscale Modelling

Bruchmüller, J, Gu, S, Luo, KH and van Wachem, BGM (2010) Discrete Element Method for Multiscale Modelling Journal of Multiscale Modelling, 02 (01n02,).

Full text not available from this repository.


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.

Item Type: Article
Divisions : Surrey research (other units)
Authors :
Bruchmüller, J
Luo, KH
van Wachem, BGM
Date : 1 March 2010
DOI : 10.1142/S1756973710000254
Uncontrolled Keywords : Multiscale modeling, discrete element method, fluidized beds, heat and mass transfer, drying
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:51
Last Modified : 25 Jan 2020 00:26

Actions (login required)

View Item View Item


Downloads per month over past year

Information about this web site

© The University of Surrey, Guildford, Surrey, GU2 7XH, United Kingdom.
+44 (0)1483 300800