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Mostrando ítems 1-10 de 14
Artículo
Global stability analysis of axisymmetric liquid-liquid flow focusing
(Cambridge University Press, 2020)
We analyse both numerically and experimentally the stability of the steady jetting tip streaming produced by focusing a liquid stream with another liquid current when they coflow through the orifice of an axisymmetric ...
Artículo
Generation of small mono-disperse bubbles in axisymmetric T-junction: The role of swirl
(American Institute of Physics Inc., 2011)
The dynamics of micro-bubble formation in an axisymmetric T-junction for a gas-liquid system is analyzed. The approach adopted involves the creation of a tapering gas-liquid meniscus from which a steady gas ligament ...
Artículo
Droplet group production in an AC electro- flow focusing microdevice
(Springer, 2017-09)
We report the production of droplet groups with a controlled number of drops in a microfluidic electro-flow focusing device under the action of an AC electric field. This regime appears for moderate voltages (500-700 V ...
Artículo
Reduction of droplet-size dispersion in parallel flow-focusing microdevices using a passive method
(IOP Publishing Ltd, 2009)
Flow-focusing devices can be used to produce microparticles at low cost, with the added advantage of low dispersion in the size of the generated particles. However, when multiple parallel devices are used with common ...
Artículo
Controllable production of Janus ligaments by AC fields in a flow‑focusing junction
(Springer, 2019-01)
We report the production of bicomponent Janus filaments of miscible aqueous fluids in a microfluidic electro-flow-focusing device under the action of an AC electric field. The production of liquid filaments can lead to ...
Artículo
Gañán-Calvo replies
(American Physical Society (APS), 2018)
Artículo
Breakup length of AC electrified jets in a microfluidic flow‑focusing junction
(Springer, 2015-06)
Electroactuation of liquid-liquid interfaces offers promising methods to actively modulate droplet formation in droplet-based microfluidic systems. Here, flow-focusing junctions are coupled to electrodes to control droplet ...
Artículo
Generation of Steady Liquid Microthreads and Micron-Sized Monodisperse Sprays in Gas Streams
(The American Physical Society, 1998)
A new class of microscopic jet flows is here reported: for a certain range of physical parameters and geometrical configurations, a perfectly steady microscopic liquid thread can be formed by a laminar accelerating gas ...
Artículo
Monosized dripping mode of axisymmetric flow focusing
(American Physical Society (APS), 2016)
We identify and analyze the perfectly regular dripping mode of flow focusing. This mode occurs within narrow intervals of injected flow rates and applied pressure drops and leads to homogeneous-size droplets with ...
Artículo
On the hydrodynamic focusing for producing microemulsions via tip streaming
(Cambridge University Press, 2022-03)
In this work we study experimentally and numerically the stability of hydrodynamic focusing to produce microemulsions. The jetting regime was produced experimentally for the lowest outer viscosity, while microdripping was ...