Perfectly Monodisperse Microbubbling by Capillary Flow Focusing
Here we report a simple microfluidics phenomenon which allows the efficient mass production of micron size gas bubbles with a perfectly monodisperse and controllable diameter. It resorts on a self- excited breakup phenomenon (which locks at a certain frequency) of a short gas microligament coflowing...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/103230 |
| Acceso en línea: | https://hdl.handle.net/11441/103230 https://doi.org/10.1103/PhysRevLett.87.274501 |
| Access Level: | acceso abierto |
| Palabra clave: | Capillary flow Capillary tubes Dispersions Parameter estimation Reynolds number |
| Sumario: | Here we report a simple microfluidics phenomenon which allows the efficient mass production of micron size gas bubbles with a perfectly monodisperse and controllable diameter. It resorts on a self- excited breakup phenomenon (which locks at a certain frequency) of a short gas microligament coflowing in a focused liquid stream. In this work, we describe the physics of the phenomenon and obtain closed expressions for the bubble diameter as a function of the liquid and gas properties, geometry, and flow parameters, from a large set of experimental results. |
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