Effective manipulation of liquids on open surfaces without external energy input is
indispensable for the advancement of point-of-care diagnostic devices. Open-surface …

Evaporating droplets are known to show complex motion that has conventionally been
explained by the Marangoni effect (flow induced by the gradient of surface tension). Here …

Contact angle hysteresis is an important phenomenon that occurs both in natural and
industrial droplet spreading/sliding applications. As they slide, droplets adopt a different …

In this study, we employ direct numerical simulation (DNS) to investigate the solutal
hydrodynamics dictating the three-dimensional coalescence of microscopic, identical-sized …

We study the fluid convection inside two adjacent evaporating droplets of binary mixture.
Micro-PIV technique has been used to measure the velocity field inside the droplet. The …

Exposure of a volatile organic vapour could set in powerful rotational motion a microdroplet
composed of an aqueous salt solution loaded with metal nanoparticles. The solutal …

Unexpectedly, under certain conditions, sessile drops from different but completely miscible
liquids do not always coalesce instantaneously upon contact: the drop bodies remain …

The dynamic wetting process of a droplet impacting on a wall is a fascinating phenomenon
relative to industrial application such as chemical engineering. However, the wetting detail …

Films and drops of liquids can change their shapes and move under the spatial gradient of
surface tension. A remote volatile liquid of relatively low surface tension can induce such …

Due to capillarity, sessile droplets of identical liquids will instantaneously fuse when they
come in contact at their three-phase lines. However, with drops of different, completely …