...Hung-Jung Tsai; Yeau-Ren Jeng This paper analyzes the performance of hydrodynamic journal bearings by applying the control-volume method to solve the average lubrication equation for grain flow. The grain characteristics, including the particle size and the grain-grain collision elasticity...

...Yeau-Ren Jeng; Hung-Jung Tsai Previous work by this group on an average lubrication equation for grain flow with roughness effects is extended to include grain-grain collision elasticity ranging from perfectly elastic to perfectly inelastic. The average lubrication equation is based on Haff’s grain...