95 citations · 361 across the 29 of their papers we have counts for
19 papers · 1 filter
Coalescence of elastic blisters filled with a viscous fluid
Torstein Sæter, Christian Pedersen, Jacco H. Snoeijer +2
Pockets of viscous fluid coalescing beneath an elastic plate are encountered in a wide range of natural phenomena and engineering processes, spanning across scales. As the pockets…
Influence of wind on a viscous liquid film flowing down a thread
Annette Cazaubiel, Andreas Carlson
We investigate experimentally the effect of wind on the dynamics of a viscous liquid film flowing down a thread. The liquid film is well-known to destabilize into an axisymmetric b…
Sliding, vibrating and swinging droplets on an oscillating fibre
Stéphane Poulain, Andreas Carlson
We study experimentally the dynamics of a water droplet on a tilted and vertically oscillating rigid fibre. As we vary the frequency and amplitude of the oscillations the droplet t…
Engulfment of a drop on solids coated by thin and thick fluid films
Chunheng Zhao, Vanessa R. Kern, Andreas Carlson +1
When an aqueous drop contacts an immiscible oil film, it displays complex interfacial dynamics. Upon contact the oil spreads onto the drop's liquid-air interface, first forming a c…
Viscoplastic sessile drop coalescence
Vanessa R. Kern, Torstein Sæter, Andreas Carlson
The evolution of the liquid bridge formed between two coalescing sessile yield-stress drops is studied experimentally. We find that the height of the bridge evolves similar to a vi…
Growth of a viscoplastic blister underneath an elastic sheet
Torstein Sæter, Olivier Galland, Blandine Feneuil +1
Inspired by the formation of geological structures as earth's crust deforms by magmatic intrusions, we investigate the elastohydrodynamic growth of a viscoplastic blister under an…
Multiple droplets on a conical fiber: formation, motion, and droplet mergers
Carmen L. Lee, Tak Shing Chan, Andreas Carlson +1
Small droplets on slender conical fibers spontaneously move along the fiber due to capillary action. The droplet motion depends on the geometry of the cone, the surface wettability…
Droplet settling on solids coated with a soft layer
Stéphane Poulain, Andreas Carlson
Gravitational settling of a droplet in air onto a soft substrate is a ubiquitous event relevant to many natural processes and engineering applications. We study this phenomenon by…
Film coating by directional droplet spreading on fibers
Tak Shing Chan, Carmen L. Lee, Christian Pedersen +2
Plants and insects use slender conical structures to transport and collect small droplets, which are propelled along the conical structures due to capillary action. These droplets…
Film deposition of a self-propelled droplet on a cone with slip
T. S. Chan, C. Pedersen, J. Koplik +1
We study the dynamic wetting of a self-propelled viscous droplet using the time-dependent lubrication equation on a conical-shaped substrate for different cone radii, cone angles a…
Curving to fly: Synthetic adaptation unveils optimal flight performance of whirling fruits
Jean Rabault, Richard A. Fauli, Andreas Carlson
Appendages of seeds, fruits and other diaspores (dispersal units) are essential for their wind dispersal, as they act as wings and enable them to fly. Whirling fruits generate an a…
Asymptotic regimes in elastohydrodynamic and stochastic leveling on a viscous film
Christian Pedersen, John Niven, Thomas Salez +2
An elastic sheet that deforms near a solid substrate in a viscous fluid is a situation relevant to various dynamical processes in biology, geophysics and engineering. Here, we stud…
Directional spreading of a viscous droplet on a conical fibre
Tak Shing Chan, Fan Yang, Andreas Carlson
If a droplet is placed on a substrate with a conical shape it spontaneously starts to spread in the direction of a growing fibre radius. We describe this capillary spreading dynami…
Wing fold angle determines the terminal descent velocity of double winged autorotating seeds, fruits and other diaspores
Richard A. Fauli, Jean Rabault, Andreas Carlson
Wind dispersal of seeds is one essential mechanisms for plants to proliferate and to invade new territories. In this paper we present a methodology that combines 3D-printing, a min…
Fluctuation assisted spreading of a fluid filled elastic blister
Andreas Carlson
In this theoretical and numerical study, we show how spatially extended fluctuations can influence and dominate the dynamics of a fluid filled elastic blister as is deforms onto a…
Local dissipation limits the dynamics of impacting droplets on smooth and rough substrates
Yuli Wang, Gustav Amberg, Andreas Carlson
A droplet that impacts onto a solid substrate deforms in a complex dynamics. To extract the principal mechanisms that dominate this dynamics we deploy numerical simulations based o…
Elastohydrodynamics of contact in adherent sheets
Andreas Carlson, Shreyas Mandre, L. Mahadevan
Adhesive contact between a thin elastic sheet and a substrate in a liquid environment arises in a range of biological, physical and technological applications. By considering the d…
Similarity and singularity in adhesive elastohydrodynamic touchdown
Andreas Carlson, L. Mahadevan
We consider the touchdown of an elastic sheet as it adheres to a wall, which has a dynamics that is limited by the viscous resistance provided by the squeeze flow of the intervenin…
Universality in dynamic wetting dominated by contact line friction
Andreas Carlson, Gabriele Bellani, Gustav Amberg
We report experiments on the rapid contact line motion present in the early stages of capillary driven spreading of drops on dry solid substrates. The spreading data fails to follo…