01830nas a2200229   4500008004100000022001400041245006200055210006200117260000800179300001100187490000800198520117300206653001301379653001301392653001901405653001601424653001101440100002601451700001801477700001701495856008801512       2022                        eng d  a0032-591000aFlow of lubricated granular material on an inclined plane0 aFlow of lubricated granular material on an inclined plane  cSEP  a1178090 v4093 a<p>
	We have studied the gravity driven flow of spherical shaped, millimetric sized granular material coated with aspherical, micron-sized, near frictionless lubricant particles. Experiments were performed on an inclined plane using two different sized particles for varying concentrations of the lubricant. The particle volumetric flow rate exhibits a non-monotonic behavior with increasing lubricant concentration. It shows an increase at lower lubricant concentration followed by a decrease at higher lubricant concentration. The lubricant particles adhere to the granular particle surface thereby reducing the inter-particle friction. However, presence of lubricant particles at higher concentration damps out inter-particle collision thereby reducing the inter-particle momentum transfer. Non-monotonicity in the observed behavior is then conjectured to arise due to competing effects of inter-particle friction and inter-particle collision. The present work and the overall observed behavior therein provides a simple experimental system to characterize the effects of added lubricant material in pharmaceutical and other relevant industrial applications.</p>
10aFriction10agranular10aInclined plane10aLubrication10aPowder1 aGhodake, Ravindra, S.1 aDoshi, Pankaj1 aOrpe, Ashish  uhttps://library.ncl.res.in/content/flow-lubricated-granular-material-inclined-plane