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Updated: Mar 10, 2026

Generation of Size-controlled Poly ethylene Glycol Diacrylate Droplets via Semi-3-Dimensional Flow Focusing Microfluidic Devices
Published on: July 3, 2018
Monosized dripping mode of axisymmetric flow focusing
Francisco Cruz-Mazo1,2, J M Montanero1, A M Gañán-Calvo2
1Departamento de Ingeniería Mecánica, Energética y de los Materiales and Instituto de Computación Científica Avanzada, Universidad de Extremadura, E-06006 Badajoz, Spain.
Abstract:
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 diameters similar to or smaller than that of the discharge orifice. The balance between the local acceleration of the fluid particle and the applied pressure drop yields the scaling law for the droplet diameter. This scaling law is validated experimentally with excellent accord.
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