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Numerical Investigation of Third‐Body Behavior in Dry and Wet Environments under Plane Shearing
Author(s) -
Pieper Christoph,
Oschmann Tobias,
Markauskas Darius,
Kempf Andreas,
Fischer Alfons,
KruggelEmden Harald
Publication year - 2016
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500647
Subject(s) - shearing (physics) , mechanics , buoyancy , rheology , computational fluid dynamics , discrete element method , lubrication , cfd dem , materials science , inclined plane , shear (geology) , porosity , geotechnical engineering , geology , composite material , physics , engineering , mechanical engineering
A coupled discrete element method and computational fluid dynamics (DEM‐CFD) approach to model and assess third‐body behavior in dry and wet environments under plane shearing is presented. DEM is used to model the granular media, while the fluid side of the system is simulated with CFD, which is based on the finite volume method. The applied model is extended to consider buoyancy as well as lubrication effects. The third body is confined and compressed between two walls, which are sheared in opposite direction with a constant velocity. The influence of different shear velocities, fluid viscosities, and gravity orientations on particle and fluid rheology is investigated. Obtained results of both dry and lubricated systems are compared regarding velocity and porosity distribution across the gap, sliding friction, and particle interaction.