67th Annual Meeting of the APS Division of Fluid Dynamics (November 23, 2014 — November 25, 2014)

V0048: Drop impact onto a solid particle

Authors

• Vitaliy Sechenyh, York University, Department of Mechanical Engineering, Toronto, Canada
• Sayed Hossein Banitabaei, York University, Department of Mechanical Engineering, Toronto, Canada
• Mina Karimi, STANTEC Inc., Edmonton, Alberta
• Alidad Amirfazli, York University, Department of Mechanical Engineering, Toronto, Canada

DOI: https://doi.org/10.1103/APS.DFD.2014.GFM.V0048

Although there have been many studies examining the impact of a droplet onto another droplet in the mid-air or an stationary spherical target, no experimental investigation has been made to date regarding the impact of a droplet with a particle in the mid-air. Understanding drop-particle impact in mid-air is very important for any process involving fluidized bed (e.g. from refining heavy oil, to coating pharmaceutical drug particles). This video shows the three impact regimes that we have identified (i.e. bonding, ripping and coating, and shattering) depending on the Weber number. We also present a model constructed based on an energy balance approach that is able to describe lamella formation for the shattering regime.