01728nas a2200157   4500008004100000022001400041245007000055210006900125260000800194300001100202490000700213520120100220100002601421700002101447856010201468       2026                        eng d  a1070-663100aSurface coating induced lubrication in flowing granular materials0 aSurface coating induced lubrication in flowing granular material  cAPR  a0433320 v383 a<p>
	We investigate the flow of spherical, bulk granular particles down an inclined plane mixed with small-sized spherical lubricant particles using discrete element method simulations. Predefined cohesive interaction is implemented between lubricant and bulk particles, enabling the coating of the former over the latter. The overall flow rate exhibits non-monotonic dependence on lubricant content. Initially, it increases with lubricant addition, reaches a maximum at an intermediate lubricant content, and decreases for even higher lubricant content. The increase in the flow rate is attributed to a lower inter-particle friction coefficient between lubricant-coated bulk particles. The decrease in the flow rate at higher lubricant content, on the other hand, is attributed to enhanced densification and increased damping between crowded particles. Both these occurrences are examined using various flow level characteristics. The simulation results are found to be in qualitative agreement with previous experimental results. Overall, the outcome integrates novel computational insights and prior experimental results to enhance the understanding of the powder lubrication phenomena.</p>
1 aChaudhary, Sayali, V.1 aOrpe, Ashish, V.  uhttps://library.ncl.res.in/content/surface-coating-induced-lubrication-flowing-granular-materials