dc.creator | Rubio, M. | es |
dc.creator | Sadek, S. H. | es |
dc.creator | Gañán-Calvo, Alfonso M. | es |
dc.creator | Montanero Fernández, José María | es |
dc.date.accessioned | 2021-07-16T15:58:45Z | |
dc.date.available | 2021-07-16T15:58:45Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Rubio, M., Sadek, S.H., Gañán-Calvo, A.M. y Montanero Fernández, J.M. (2021). Diameter and charge of the first droplet emitted in electrospray. Physics of Fluids, 33 (3), Article number 032002. | |
dc.identifier.issn | 10706631 | es |
dc.identifier.uri | https://hdl.handle.net/11441/116222 | |
dc.description | Article number 032002 | es |
dc.description.abstract | The first droplet produced by a low-conductivity pendant/sessile droplet subject to a strong electric field is particularly important at the fundamental level because, in contrast to steady electrospray phenomena, its ejection entails complex charge relaxation and electrokinetic processes.
Besides, it is technologically relevant because of its very small diameter and large electric charge per unit volume. In this work, we present an
experimental technique to measure with unprecedented accuracy the diameter of the droplet and to determine for the first time its electric
charge. We discuss both the advantages of our technique over possible alternatives and the limitations of the method. The proposed method is
applied to two alcohols with electrical conductivities of the order of a few lS/m. The high sensitivity of our experimental technique allows us to
determine the influence of both the magnitude and the polarity of the applied voltage on the size and charge of the ejected droplet. The electric
charge of the first-emitted droplet lies in the interval 0:51 q=qR 0:66 (qR is the Rayleigh limit of charge) for the two liquids analyzed. These
experimental values are slightly larger than those obtained from theoretical predictions. The value of q=qR for the first droplet is very relevant
because it can be regarded as an upper bound of those of the droplets subsequently emitted in the cone-jet mode of electrospray. | es |
dc.description.sponsorship | Ministerio de Economía, industria y competitividad DPI2016-78887 | es |
dc.description.sponsorship | Ministerio de Economía, industria y competitividad PID2019-108278RB | es |
dc.description.sponsorship | Junta de Extremadura GR18175 | es |
dc.format | application/pdf | es |
dc.format.extent | 9 p. | es |
dc.language.iso | eng | es |
dc.publisher | American Institute of Physics Inc. | es |
dc.relation.ispartof | Physics of Fluids, 33 (3), Article number 032002. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Electrohydrodynamics | es |
dc.subject | Electrospraying | es |
dc.subject | Printing | es |
dc.subject | Electric charge | es |
dc.subject | Electric fields | es |
dc.title | Diameter and charge of the first droplet emitted in electrospray | es |
dc.title.alternative | Diameter and charge of the first droplet emitted in electrospray | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos | es |
dc.relation.projectID | GR18175 | es |
dc.relation.projectID | DPI2016-78887 | es |
dc.relation.projectID | PID2019-108278RB | es |
dc.relation.publisherversion | https://aip.scitation.org/doi/10.1063/5.0041428 | es |
dc.identifier.doi | DOI 10.1063/5.0041428 | es |
dc.journaltitle | Physics of Fluids | es |
dc.publication.volumen | 33 | es |
dc.publication.issue | 3 | es |
dc.publication.initialPage | Article number 032002 | es |