1. Monosized dripping mode of axisymmetric flow focusing
- Author
-
José María Montanero, Francisco Cruz-Mazo, Alfonso M. Gañán-Calvo, Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos, and Universidad de Sevilla. TEP -219: Física de Fluidos y Microfluidica
- Subjects
Pressure drop ,Materials science ,Microfluidic devices ,Microfluidics ,Mode (statistics) ,Mechanics ,01 natural sciences ,010305 fluids & plasmas ,Volumetric flow rate ,Physics::Fluid Dynamics ,Acceleration ,Flow focusing ,0103 physical sciences ,Axisymmetric flow ,010306 general physics ,Body orifice ,Flow instability - 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. Ministerio de Economía, Industria y Competitividad DPI2013-46485 Gobierno de Extremadura GR10047
- Published
- 2016
- Full Text
- View/download PDF