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Experimental characterization of droplet dispensing in electrowetting-based microfluidics
In this study, the effect of various parameters on the dispensed droplet size in microchannels based on the electrowetting on dielectric (EWOD) technique is experimentally investigated. A PCB-based microfluidic chip is used as a platform...
The effects of rate of expansion and injection of water droplets on the entropy generation of nucleating steam flow in a Laval nozzle
losses take place during the nucleation phenomena.
The effect of rate of expansion on the exergy losses is
considered by decreasing the divergent angle of nozzle.
Also micro-sized pure water droplets is injected theoretically...
The effect of reservoir liquid volume on dispensed droplet size in a microchannel using the EWOD technique
The present experimental study investigates the effect of the
reservoir liquid volume on the dispensed droplet size in a
microchannel based on electrowetting on dielectric
(EWOD) technique. A...
Cooling effectiveness of a water drop impinging on a hot surface
We studied, using both experiments and a numerical model, the impact of water droplets on a hot stainless steel surface. Initial substrate temperatures were varied from 50°C to 120°C (low enough to prevent boiling in the drop) and impact velocities...
Droplet impact and solidification in a thermal spray process: droplet-substrate interactions
of the individual droplets which are in turn highly affected by the substrate conditions such as its temperature, material, and surface thermal contact resistance. In this study, droplet-substrate interactions are investigated through a complete numerical solution...
Comments on “ Photophysics of rhodamine B in the nanosized water droplets: A concentration dependence study
to surfactant molar ratio (Y = 10 and 8). Morevoer, The effect of droplet concentration was studied on fluorescence spectra of Rhodamine B-doped droplets. The size of droplet was changed by increase of water to surfactant molar ratio(Y). The results shows...
Droplet impact and solidification: comparison of experimental and numerical results
Impact and solidification of tin droplets on a flat stainless steel substrate was studied using both experiments and numerical simulation. In the experiments tin droplets (2.1 mm diameter) were formed and dropped onto a stainless steel surface whose...
Droplet impact on a tube: simulations and experiments
The impact of a water droplet on a stainless steel tube was studied using both numerical simul ations and
experiments. A 3D numerical model of Bussmann et al. [I] for free-surface flows (such as an impacting droplet) was extended to include...
Simulation of droplet impact on a curved solid surface by Lattice Boltzmann Method
In this paper, a two-phase multi-relaxation time lattice
Boltzmann model is implemented to investigate droplet
impact on a curved solid surface. The improved model is
capable of simulating...
Geometrical Characterization of a Micro-Channel in Electro-Wetting Application
This article investigates the effect of a micro-channel width
and height on the threshold voltage for the movement of a
liquid metal droplet in the electrowetting on dielectric
(EWOD) phenomenon...