Spherical Droplet Deposition—Mechanistic Model

Rough droplet model for spherical metal clusters

We study the thermally activated oscillations, or capillary waves, of a neutral metal cluster within the liquid drop model. These deformations correspond to a surface roughness which we characterize by a single parameter ∆. We derive a simple analytic expression determining ∆ as a function of temperature and cluster size. We then estimate the induced effects on shell structure by means of a per...

A patching model for surface tension of spherical droplet and Tolman length. II

Self-assembly of spherical particles on an evaporating sessile droplet.

Particles adsorbed on the surface of a droplet form three-dimensional packings when the droplet evaporates. We study the final packings when the liquid droplet is attached to a solid substrate. In contrast to a droplet evaporating away from a substrate, here the final packings are highly dependent on both the number of particles and the contact angle between the droplet and the surface. Simple ...

Droplet microfluidics for fabrication of non-spherical particles.

We describe new developments for controlled fabrication of monodisperse non-spherical particles using droplet microfluidics. The high degree of control afforded by microfluidic technologies enables generation of single and multiple emulsion droplets. We show that these droplets can be transformed to non-spherical particles through further simple, spontaneous processing steps, including arrested...

Fluid displacement by Stokes flow past a spherical droplet

By I. EAMES, D. GOBBY AND S. B. DALZIEL Departments of Mechanical Engineering and Mathematics, University College London, Torrington Place, London WC1E 7JE, UK Department of Chemical Engineering, University College London, Torrington Place, London WC1E 7JE, UK Department of Applied Mathematics and Theoretical Physics, Cambridge University, Centre for Mathematical Sciences, Wilberforce Road, Cam...