| Wed April 21st 2010 16:00 ZH286 | Journal Club | From Bouncing to Floating: Noncoalescence of Drops on a Fluid Bath Koen Winkels |
Details:A liquid droplet falls into a bath of the same liquid, it will coalesce, splash, crown, high speed … blah blah blah. But actually the coalescence can be prevented if we oscillate the liquid bath vertically appropriately and the droplet will bounce on the surface for around 30 min. Koen will explain us how it is possible for the air film between droplet and bath to remain for such a long time sustaining the droplet in the air.The phenomenon gave rise to a lot of rich phenomena involving particle-particle interaction, check also this one (Awarded in the Gallery of fluid motion) and others in the literature. “From Bouncing to Floating: Noncoalescence of Drops on a Fluid Bath”, Phys. Rev. Lett. 94, 177801 (2005). | ||
