Electric current of an electrified jet issuing from a long metallic tube.

Higuera Antón, Francisco (2011). Electric current of an electrified jet issuing from a long metallic tube.. "Journal of Fluid Mechanics", v. 675 ; pp. 596-606. ISSN 0022-1120. https://doi.org/10.1017/jfm.2011.126.

Descripción

Título: Electric current of an electrified jet issuing from a long metallic tube.
Autor/es:
  • Higuera Antón, Francisco
Tipo de Documento: Artículo
Título de Revista/Publicación: Journal of Fluid Mechanics
Fecha: 2011
Volumen: 675
Materias:
Escuela: E.T.S.I. Aeronáuticos (UPM) [antigua denominación]
Departamento: Motopropulsión y Termofluidodinámica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper presents an analysis of the transport of electric current in a jet of an electrically conducting liquid discharging from a metallic tube into a gas or a vacuum, and subject to an electric field due to a high voltage applied between the tube and a far electrode. The flow, the surface charge and the electric field are computed in the current transfer region of the jet, where conduction current in the liquid becomes surface current due to the convection of electric charge accumulated at its surface. The electric current computed as a function of the flow rate of the liquid injected through the tube increases first as the square root of this flow rate, levels to a nearly constant value when the flow rate is increased and finally sets to a linear increase when the flow rate is further increased. The current increases linearly with the applied voltage at small and moderate values of this variable, and faster than linearly at high voltages. The characteristic length and structure of the current transfer region are determined. Order-of-magnitude estimates for jets which are only weakly stretched by the electric stresses are worked out that qualitatively account for some of the numerical results.

Más información

ID de Registro: 11360
Identificador DC: http://oa.upm.es/11360/
Identificador OAI: oai:oa.upm.es:11360
Identificador DOI: 10.1017/jfm.2011.126
Depositado por: Memoria Investigacion
Depositado el: 30 Jul 2012 10:47
Ultima Modificación: 20 Abr 2016 19:27
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