514 citations · 1.1k across the 13 of their papers we have counts for
14 papers
Droplet jumping by modulated electrowetting
Quoc Vo, Tuan Tran
We investigate jumping of sessile droplets from a solid surface in ambient oil using modulated electrowetting actuation. We focus on the case in which the electrowetting effect is…
Viscous droplet impingement on soft substrates
Marcus Lin, Quoc Vo, Surjyasish Mitra +1
Viscous droplets impinging on soft substrates may exhibit several distinct behaviours including repeated bouncing, wetting, and hovering, i.e., spreading and retracting after impac…
Bouncing-to-wetting transition for impact of water droplets on soft solids
Surjyasish Mitra, Quoc Vo, Tuan Tran
Soft surfaces impacted by liquid droplets trap more air underneath than their rigid counterpart. The extended lifetime of the air film not only facilitates bouncing behaviours of t…
Droplet ejection by electrowetting actuation
Quoc Vo, Tuan Tran
Fast contact-line motion of a droplet spreading on a solid substrate under the electrowetting effect generates strong capillary waves on the droplet's surface. The capillary waves…
Vibration-induced actuation of droplets on microstructured surfaces
Dinh-Tuan Phan, Hao Yu, Tuan Tran
When a liquid droplet impacts a vibrated micro-structured surface with asymmetric topology, the liquids perform a horizontal motion during its bouncing. The moving effect is observ…
Leidenfrost droplets trampoline
Dongdong Liu, Tuan Tran
A liquid droplet hovering on a hot surface is commonly referred to as a Leidenfrost droplet. In this study, we discover that a Leidenfrost droplet involuntarily performs a series o…
Universality of oscillating boiling in Leidenfrost transition
Mohammad Khavari, Tuan Tran
The Leidenfrost transition leads a boiling system to the boiling crisis, a state in which the liquid loses contact with the heated surface due to excessive vapor generation. Here,…
Leidenfrost temperature increase for impacting droplets on carbon-nanofiber surfaces
Hrudya Nair, Hendrik J. J. Staat, Tuan Tran +4
Droplets impacting on a superheated surface can either exhibit a contact boiling regime, in which they make direct contact with the surface and boil violently, or a film boiling re…
Levitation of a drop over a moving surface
Henri Lhuissier, Yoshiyuki Tagawa, Tuan Tran +1
We investigate the levitation of a drop gently deposited onto the inner wall of a rotating hollow cylinder. For a sufficient velocity of the wall, the drop steadily levitates over…
Maximal air bubble entrainment at liquid drop impact
Wilco Bouwhuis, Roeland C. A. van der Veen, Tuan Tran +7
At impact of a liquid drop on a solid surface an air bubble can be entrapped. Here we show that two competing effects minimize the (relative) size of this entrained air bubble: For…
Direct measurements of air layer profiles under impacting droplets using high-speed color interferometry
Roeland C. A. van der Veen, Tuan Tran, Detlef Lohse +1
A drop impacting on a solid surface deforms before the liquid makes contact with the surface. We directly measure the time evolution of the air layer profile under the droplet usin…
Drop impact on superheated surfaces
Tuan Tran, Hendrik J. J. Staat, Andrea Prosperetti +2
At impact of a liquid droplet on a smooth surface heated above the liquid's boiling point, the droplet either immediately boils when it contacts the surfaces (``contact boiling''),…
Macroscopic effects of the spectral structure in turbulent flows
Tuan Tran, Pinaki Chakraborty, Nicholas Guttenberg +5
Two aspects of turbulent flows have been the subject of extensive, split research efforts: macroscopic properties, such as the frictional drag experienced by a flow past a wall, an…
Marangoni shocks in unobstructed soap-film flows
T. Tran, P. Chakraborty, G. Gioia +2
It is widely thought that in steady, gravity-driven, unobstructed soap-film flows, the velocity increases monotonically downstream. Here we show experimentally that the velocity in…