4 papers · 1 filter
Laser-induced droplet deformation: curvature inversion explained from instantaneous pressure impulse
Hugo França, Hermann Karl Schubert, Oscar Versolato +1
We investigate the shape of a tin sheet formed from a droplet struck by a nanosecond laser pulse. Specifically, we examine the dynamics of the process as a function of laser beam p…
Interfacial aggregation of self-propelled Janus colloids in sessile droplets
Maziyar Jalaal, Borge ten Hagen, Hai le The +3
Living microorganisms in confined systems typically experience an affinity to populate boundaries. The reason for such affinity to interfaces can be a combination of their directed…
Spreading of viscoplastic droplets
Maziyar Jalaal, Boris Stoeber, Neil Balmforth
The spreading under surface tension and gravity of a droplet of yield-stress fluid over a thin film of the same material is studied. The droplet converges to a final equilibrium sh…
Ripples in Thin Films
Maziyar Jalaal, Carola Seyfert, Jacco Snoeijer
Capillary ripples on thin viscous films are important features of coating and lubrication flows. Here we present experiments based on Digital Holographic Microscopy, measuring the…