Qualitative analysis of the minimum flow rate of a cone-jet of a very polar liquid

Higuera Antón, Francisco (2017). Qualitative analysis of the minimum flow rate of a cone-jet of a very polar liquid. "Journal of Fluid Mechanics", v. 816 ; pp. 428-441. ISSN 0022-1120. https://doi.org/10.1017/jfm.2017.111.

Descripción

Título: Qualitative analysis of the minimum flow rate of a cone-jet of a very polar liquid
Autor/es:
  • Higuera Antón, Francisco
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Fluid Mechanics
Fecha: Abril 2017
Volumen: 816
Materias:
Palabras Clave Informales: Drops and bubbles, electrohydrodynamic effects
Escuela: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Departamento: Mecánica de Fluidos y Propulsión Aeroespacial
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

Texto completo

[img]
Vista Previa
PDF (Document Portable Format) - Se necesita un visor de ficheros PDF, como GSview, Xpdf o Adobe Acrobat Reader
Descargar (2MB) | Vista Previa

Resumen

Electrostatic atomization of a liquid of finite electrical conductivity in the so-called cone-jet regime relies on the electric shear stresses that appear in a region of the liquid surface when a meniscus of the liquid is subjected to an intense electric field. An order of magnitude analysis is used to describe the flow induced by these stresses, which drive the liquid of the meniscus into a jet that issues from the tip of the meniscus and breaks into droplets at some distance from it. When the dielectric constant of the liquid is large, the electric shear stresses extend into the jet and cause a depression that sucks liquid from the meniscus. The induced flow rate is estimated and shown to represent approximately the minimum flow rate at which a cone-jet can be established. It is argued that the meniscus can be stabilized by the electric field that the charge of the jet induces on it. This stabilizing mechanism weakens when the flow rate supplied to the meniscus decreases, and its failure may determine an alternative minimum flow rate for the cone-jet regime. The instability of the jet and existing scaling laws for the size of the spray droplets are discussed.

Proyectos asociados

TipoCódigoAcrónimoResponsableTítulo
Gobierno de EspañaDPI2013-47372-C02-02Sin especificarSin especificarSin especificar
Gobierno de EspañaDPI2015-71901-REDTSin especificarSin especificarSin especificar

Más información

ID de Registro: 49807
Identificador DC: http://oa.upm.es/49807/
Identificador OAI: oai:oa.upm.es:49807
Identificador DOI: 10.1017/jfm.2017.111
URL Oficial: https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/qualitative-analysis-of-the-minimum-flow-rate-of-a-conejet-of-a-very-polar-liquid/7C6D5448C3090775F5966A62BECB720A
Depositado por: Memoria Investigacion
Depositado el: 01 Ago 2018 10:36
Ultima Modificación: 01 Ago 2018 10:36
  • GEO_UP4
  • Open Access
  • Open Access
  • Sherpa-Romeo
    Compruebe si la revista anglosajona en la que ha publicado un artículo permite también su publicación en abierto.
  • Dulcinea
    Compruebe si la revista española en la que ha publicado un artículo permite también su publicación en abierto.
  • Recolecta
  • InvestigaM
  • Observatorio I+D+i UPM
  • OpenCourseWare UPM