42 citations · 49 across the 8 of their papers we have counts for
8 papers
Viscoelasticity reduces the droplet size in mucosalivary film fragmentation during intense respiratory events
Mogeng Li, Youssef Saade, Stéphane Zaleski +3
We examine the fundamental fluid dynamical mechanisms dictating the generation of bioaerosols in the human trachea during intense respiratory events such as coughing and sneezing,…
Role of surfactants on droplet formation in piezoacoustic inkjet printing across microsecond-to-second timescales
Maaike Rump, Christian Diddens, Uddalok Sen +3
In piezo acoustic drop-on-demand inkjet printing a single droplet is produced for each piezo driving pulse. This droplet is typically multicomponent, including surfactants to contr…
Evaporation of binary liquids from a capillary tube
Lijun Thayyil Raju, Christian Diddens, Javier Rodríguez-Rodríguez +4
Evaporation of multi-component liquid mixtures in confined geometries, such as capillaries, is crucial in applications such as microfluidics, two-phase cooling devices, and inkjet…
Elastocapillary Worthington jets
Uddalok Sen, Detlef Lohse, Maziyar Jalaal
The retraction of an impacting droplet on a non-wetting substrate is often associated with the formation of a Worthington jet, which is fed by the retracting liquid. A non-Newtonia…
Selective evaporation at the nozzle exit in piezoacoustic inkjet printing
Maaike Rump, Uddalok Sen, Roger Jeurissen +5
In practical applications of inkjet printing the nozzles in a printhead have intermittent idle periods, during which ink can evaporate from the nozzle exit. Inks are usually multic…
Vorticity-induced flow-focusing leads to bubble entrainment in an inkjet printhead: synchrotron X-ray and volume-of-fluid visualizations
Maaike Rump, Youssef Saade, Uddalok Sen +4
The oscillatory flows present in an inkjet printhead can lead to strong deformations of the air-liquid interface at the nozzle exit. Such deformations may lead to an inward directe…
Taylor-Culick retractions and the influence of the surroundings
Vatsal Sanjay, Uddalok Sen, Pallav Kant +1
When a freely suspended liquid film ruptures, it retracts spontaneously under the action of surface tension. If the film is surrounded by air, the retraction velocity is known to a…
The retraction of jetted slender viscoelastic liquid filaments
Uddalok Sen, Charu Datt, Tim Segers +4
Long and slender liquid filaments are produced during inkjet printing, which can subsequently either retract to form a single droplet, or break up to form a primary droplet and one…