Flows of granular particles in sliding contacts have been proposed as a “dry” lubrication mechanism. Granular flows are complex flows that exhibit fluid and solid behavior. A transparent granular shear cell (GSC) with an annular geometry was constructed to study their behavior. The GSC operates at variable speeds and its wheel roughness was fabricated to physically match the well-known theoretical boundary conditions of Jenkins and Richman. Effects of the physical variables on the local granular flow parameters are presented. A continuum modeling approach, known as granular kinetic lubrication (GKL), was employed to predict the experimental data. Good qualitative and modest quantitative agreements between the experiments and model were obtained.
- Tribology Division
Granular Flows in an Annular Shear Cell With Varying Roughness: Experiments and Modeling
- Views Icon Views
- Share Icon Share
- Search Site
Higgs, CF, III, Jasti, V, & Tichy, J. "Granular Flows in an Annular Shear Cell With Varying Roughness: Experiments and Modeling." Proceedings of the STLE/ASME 2006 International Joint Tribology Conference. Part B: Magnetic Storage Tribology; Manufacturing/Metalworking Tribology; Nanotribology; Engineered Surfaces; Biotribology; Emerging Technologies; Special Symposia on Contact Mechanics; Special Symposium on Nanotribology. San Antonio, Texas, USA. October 23–25, 2006. pp. 1337-1343. ASME. https://doi.org/10.1115/IJTC2006-12220
Download citation file: