Abstract
The present modelling study is motivated by experimental shear cell studies of flowing beads. A previous companion study detailed the granular kinetic lubrication continuum modelling methodology and presented selected results. The previous results focused on the effect of the load and surface sliding velocity (or equivalently the shear rate for a fixed gap) on velocity profile, solid volume fraction profile, as well as global variables such as the surface slip velocity and shear stress. The effects of other important variables, namely, particle—particle and wall—particle coefficients of restitution, surface roughness, and granular temperature are now examined. Most predictions of the model seem to be consistent with physical reasoning, e.g. the wall slip is reduced due to roughness, and temperature (particle energy) is increased by wall elasticity. However, unanticipated non-monotonic trends were exhibited, such as the variation of slip velocity with particle—particle collisional dissipation. The predicted trends of the model agree reasonably well with experimental results on the load-carrying capacity of sheared granules considering there were no fitting parameters used.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
