Electro-flow focusing: the high-conductivity low-viscosity limit |
| |
Authors: | Gañán-Calvo Alfonso M |
| |
Institution: | Escuela Superior de Ingenieros, Universidad de Sevilla, Camino de los Descubrimientos, 41092 Seville, Spain. amgc@us.es |
| |
Abstract: | Electro-flow focusing, a technique combining the features of electrospray (ES) and flow focusing (FF), provides a reliable tool to reach parametrical microjetting ranges not attainable by ES or FF alone under specific operational regimes (liquid properties and flow rate). In this Letter, we provide not only a closed theoretical model predicting the diameter of a high electrical conductivity electro-flow focused liquid microjet, but also its convective or absolute instability, linked to the jetting-to-dripping transition and the minimum liquid flow rate that can be ejected in steady jetting regime, in which the smallest droplets are issued. Good agreement is found with experimental values. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|