Print Email Facebook Twitter Fluidization of elongated particles—Effect of multi-particle correlations for drag, lift, and torque in CFD-DEM Title Fluidization of elongated particles—Effect of multi-particle correlations for drag, lift, and torque in CFD-DEM Author Mema, I. (TU Delft Complex Fluid Processing) Padding, J.T. (TU Delft Complex Fluid Processing) Date 2021 Abstract Having proper correlations for hydrodynamic forces is essential for successful CFD-DEM simulations of a fluidized bed. For spherical particles in a fluidized bed, efficient correlations for predicting the drag force, including the crowding effect caused by surrounding particles, are already available and well tested. However, for elongated particles, next to the drag force, the lift force, and hydrodynamic torque also gain importance. In this work, we apply recently developed multi-particle correlations for drag, lift and torque in CFD-DEM simulations of a fluidized bed with spherocylindrical particles of aspect ratio 4 and compare them to simulations with widely used single-particle correlations for elongated particles. Simulation results are compared with previous magnetic particle tracking experimental results. We show that multi-particle correlations improve the prediction of particle orientation and vertical velocity. We also show the importance of including hydrodynamic torque. Subject CFD-DEMfluidized bedhydrodynamic torquelift forcemulti-particle correlationsnonspherical particles To reference this document use: http://resolver.tudelft.nl/uuid:e3a0baa9-03eb-4179-a473-b5949f3b9649 DOI https://doi.org/10.1002/aic.17157 ISSN 0001-1541 Source AIChE Journal, 67 (5) Part of collection Institutional Repository Document type journal article Rights © 2021 I. Mema, J.T. Padding Files PDF aic.17157.pdf 2.38 MB Close viewer /islandora/object/uuid:e3a0baa9-03eb-4179-a473-b5949f3b9649/datastream/OBJ/view