8 papers
Liquid bridges between horizontal cylinders: effects of gravity and electric fields
Agnes J. Bokányi-Tóth, Andrew J. Archer, Radu Cimpeanu +3
Liquid bridges suspended between two parallel horizontal cylinders are studied using experiments, reduced-order mathematical modelling and numerical simulations. Both non-electrifi…
Data-Driven Equation Discovery for Nonlinear Liquid Film Flows
Sebastian T. Dooley, Albert P. Bartók, James E. Sprittles +1
Over the past decade data-driven equation discovery emerged as a powerful alternative to first principles-based methodologies traditionally used in mathematical modelling cycles. T…
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…
Fast droplet impact onto slowly moving deep pools
Thomas C. Sykes, Luke F. L. Alventosa, J. Rafael Castrejon-Pita +3
When a fast droplet impacts a pool, the resulting ejecta sheet dynamics determine the final impact outcome. At low Capillary numbers, the ejecta sheet remains separate from a deep…
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…
Non-linear estimators for the observation and stabilisation of falling liquid films
Oscar Holroyd, Radu Cimpeanu, Susana N. Gomes
Falling liquid films are complex physical processes modelled by infinite-dimensional dynamical systems. The interfacial behaviour is characterised by the Reynolds number, a nondime…