Droplet Rebound and Rupture

Authors

Mason Lee, DePauw University
Alyssa Fisher, DePauw University

Files

Document Type

Abstract

Publication Date

10-2-2019

Abstract

Droplets of 1 cst silicone oil, with an initial velocity component tangent to the surface of a bath of the same fluid, will roll along the surface for hundreds of milliseconds, slowing exponentially until eventual coalescence. A rigid vertical wall, placed in the bath perpendicular to the path of the droplet, forces early coalescence either on the meniscus formed on the wall or after rebounding from the wall. By moving the wall along the line of motion of the droplet, a transition point is found in the droplet’s trajectory in which, at a fixed wall position, the droplet may either coalesce within less than one droplet diameters distance from the turning point or travel many droplet diameters. We find a clear bi-modal distribution in droplet travel distance at this transition point and present a physical model to explain this interaction.

Project Mentor

Prof. J. Hale, PhD

Funding and Acknowledgements

Funding: Science Research Fellows Program, Douglas A. & Phyllis G. Smith Student Faculty Collaborative Research Fund, Faculty Development Program

Recommended Citation

Lee, Mason and Fisher, Alyssa, "Droplet Rebound and Rupture" (2019). Annual Student Research Poster Session. 167.
https://scholarship.depauw.edu/srfposters/167