2020-12-152020-12-152001Gañán-Calvo, Alfonso M. y Gordillo Arias de Saavedra, J.M. (2001). Perfectly Monodisperse Microbubbling by Capillary Flow Focusing. Physical Review Letters, 87 (27), 274501-1-274501-4.0031-9007https://hdl.handle.net/11441/103230Here 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.application/pdf4 p.engAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Capillary flowCapillary tubesDispersionsParameter estimationReynolds numberinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccess10.1103/PhysRevLett.87.274501