7 papers
Surface Waves Alter Air Entrainment During Water Entry
Chase T. Gabbard, Mario Ibrahim, Joseph Quinton +3
When a sphere crosses an air-water interface it can entrain a significant volume of air, a process relevant to numerous naval, industrial, and environmental settings. While air ent…
Vertical motion of a periodically driven floating disc
Anand U. Oza, Jack-William Barotta, Eli Silver +1
We present the results of a combined theoretical and experimental investigation into the vertical dynamics of floating discs subjected to an imposed time-periodic forcing. The axis…
Bouncing to coalescence transition for droplet impact onto moving liquid pools
Daniel M. Harris, Luke F. L. Alventosa, Oliver Sand +5
A droplet impacting a deep fluid bath is as common as rain over the ocean. If the impact is sufficiently gentle, the mediating air layer remains intact, and the droplet may rebound…
Macroscopic Brownian Motion on a Chaotic Fluid Interface
Jack-William Barotta, Caroline M. Barotta, Eli Silver +1
Brownian motion is the erratic motion of an object due to collisions with the fluid in which it is immersed. In this work, we detail a tabletop laboratory demonstration of underdam…
Drop rebound at low Weber number
Chase T. Gabbard, Elvis A. Aguero, Radu Cimpeanu +5
We study the rebound of drops impacting non-wetting substrates at low Weber number through experiment, direct numerical simulation, and reduced-order modeling. Submillimeter-s…
CyberDiver: an untethered robotic impactor for water-entry experiments
John T. Antolik, Eli A. Silver, Jesse L. Belden +1
We present the CyberDiver, an untethered robotic impactor capable of actively modulating the fluid physics during high-speed water entry. First, we utilize the CyberDiver to extend…