Monosized dripping mode of axisymmetric flow focusing

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...

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Detalles Bibliográficos
Autores: Cruz-Mazo, Francisco, Montanero, J. M., Gañán-Calvo, Alfonso M.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/103225
Acceso en línea:https://hdl.handle.net/11441/103225
https://doi.org/10.1103/PhysRevE.94.053122
Access Level:acceso abierto
Palabra clave:Flow instability
Microfluidic devices
Microfluidics
Descripción
Sumario: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.