48 citations · 66 across the 8 of their papers we have counts for
8 papers
Thin-film drainage becomes singular at saddles
Simeon Djambov, Alice Marcotte, François Gallaire +1
From coating curved parts to creeping lava, thin-film gravitational drainage over complex surfaces can produce abrupt accumulation, usually associated with sharp edges or defects.…
Fluid-induced snap-through instability of spherical shells
Pier Giuseppe Ledda, Hemanshul Garg, Vitus Østergaard-Clausen +3
We study the snapping instability of a spherical elastic shell induced by a viscous flow, the umbrella flipping problem when life is at low Reynolds numbers. We combine precision d…
Releasing trapped Taylor bubbles via centrifugation and inclination
Alice Marcotte, Pier Giuseppe Ledda, Valentin Buriasco +3
In confined systems, the entrapment of a gas volume with an equivalent spherical diameter greater than the dimension of the channel can form extended bubbles that obstruct fluid ci…
Passive viscous flow selection via fluid-induced buckling
Hemanshul Garg, Pier Giuseppe Ledda, Jon Skov Pedersen +1
We study the buckling of a clamped beam immersed in a creeping flow within a rectangular channel. Via a combination of precision experiments, simulations, and theoretical modeling,…
Gravity-driven coatings on curved substrates: a differential geometry approach
Pier Giuseppe Ledda, Matteo Pezzulla, Etienne Jambon-Puillet +2
Although the drainage and spreading processes of thin liquid films on substrates have received growing attention during the last decades, the study of three-dimensional cases is li…
Prediction of Self-Assembled Dewetted Nanostructures for Photonics Applications via a Continuum Mechanics Framework
Louis Martin-Monier, Pier Giuseppe Ledda, Pierre-Luc Piveteau +2
When a liquid film lies on a non-wettable substrate, the configuration is unstable and the film then retracts from a solid substrate to form droplets. This phenomenon, known as dew…
Too fast to grow: Dynamics of pendant drops sliding on a thin film
Etienne Jambon-Puillet, Pier Giuseppe Ledda, François Gallaire +1
Pendant drops suspended on the underside of a wet substrate are known to accumulate fluid from the surrounding thin liquid film, a process that often results in dripping. The growt…
Suppression of von Kármán vortex streets past porous rectangular cylinders
Pier Giuseppe Ledda, Lorenzo Siconolfi, Francesco Viola +2
Although the stability properties of the wake past impervious bluff bodies have been widely examined in the literature, similar analyses regarding the flow around and through porou…