Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session G12: Leidenfrost and Levitating Drops
10:35 AM–12:45 PM,
Monday, November 19, 2018
Georgia World Congress Center
Room: B217
Chair: Yoshiyuki Tagawa, Tokyo University of Agriculture and Technology
Abstract ID: BAPS.2018.DFD.G12.9
Abstract: G12.00009 : Levitation of Sparkling Water Drops using Self-Generated Gas Cushion*
12:19 PM–12:32 PM
Presenter:
Divya Panchanathan
(MIT)
Authors:
Divya Panchanathan
(MIT)
Philippe Bourrianne
(MIT)
Philippe Nicollier
(MIT)
Abhijatmedhi Chotrattanapituk
(MIT)
Kripa K Varanasi
(MIT)
Gareth H McKinley
(MIT)
Previous studies have shown that droplet levitation on solid surfaces (Leidenfrost effect) can be realized by creating a vapor/air cushion under the drop using evaporation, gas perfusion or surface-driven motions. However, the major limitation of these methods is that the substrate needs to be either heat resistant, porous or mobile. A progressive loss of liquid volume is an additional drawback in the case of evaporating droplets. We demonstrate a room-temperature Leidenfrost effect that is driven spontaneously by the degassing of carbonated water droplets deposited on superhydrophobic surfaces. We observe the levitation-to-wetting transition of these degassing droplets using light interferometry on transparent superhydrophobic substrates. We characterize the timescales of the wetting transitions with respect to the concentration of dissolved carbon dioxide and show that a minimum critical dissolved carbon dioxide concentration of ≈10 mM is required for achieving droplet levitation. We finally display the practical utility of this phenomena for liquid-solid friction reduction, droplet sorting, self-propulsion, and on-demand droplet levitation using chemical reactions.
*King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.G12.9
Follow Us |
Engage
Become an APS Member |
My APS
Renew Membership |
Information for |
About APSThe American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics. |
© 2025 American Physical Society
| All rights reserved | Terms of Use
| Contact Us
Headquarters
1 Physics Ellipse, College Park, MD 20740-3844
(301) 209-3200
Editorial Office
100 Motor Pkwy, Suite 110, Hauppauge, NY 11788
(631) 591-4000
Office of Public Affairs
529 14th St NW, Suite 1050, Washington, D.C. 20045-2001
(202) 662-8700