Hydrodynamic Model for the Plasma-Gas Flow in a Cutting Torch Nozzle.

dc.creatorKelly, Héctor
dc.creatorMinotti, Fernando
dc.creatorPrevosto, Leandro
dc.creatorMancinelli, Beatriz
dc.date.accessioned2024-02-15T00:53:05Z
dc.date.available2024-02-15T00:53:05Z
dc.date.issued2004
dc.description.abstractWe present a simple hydrodynamic model to obtain the profiles of the relevant physical quantities along a nozzle of arbitrary cross-section in a cutting torch. The model uses a two-zone approximation (a hot central plasma carrying the discharge current wrapped by a relatively cold gas which thermally isolates the nozzle wall from the plasma). Seeking for a solution with sonic conditions at the nozzle exit, the model allows expressing all the profiles in terms of the externally controlled parameters of the torch (geometry of the torch, discharge current, mass flow of the gas and plenum pressure) and the values of the arc and gas temperatures at the nozzle entrance. These last two values can be estimated simply appealing to energy conservation in the cathode-nozzle region. The model contains additional features compared with previous reported models, while retaining simplicity. The detailed consideration of an arc region coupled to the surrounding gas dynamics allows determining voltage drops and consequent delivered power with less assumptions than those found in other published works, and at the same time reduces the set of parameters needed to determine the solution.es_ES
dc.description.affiliationFil: Kelly, Héctor. Facultad de Ciencias Exactas y Naturales (UBA). Departamento de Física. Instituto de Física ( CONICET). Buenos Aires; Argentina.es_ES
dc.description.affiliationFil: Minotti, Fernando. Instituto de Física del Plasma. Departamento de Física. Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires; Argentina.es_ES
dc.description.affiliationFil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas. Santa Fe; Argentina.es_ES
dc.description.affiliationFil: Mancinelli, Beatriz. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas. Santa Fe; Argentina.es_ES
dc.description.peerreviewedPeer Reviewedes_ES
dc.formatpdfes_ES
dc.identifier.citationBrazilian Journal of Physics.es_ES
dc.identifier.uriwww.scielo.br/j/bjp/a/vhqfSTW5R4HKxxX3xngtHxk/?format=pdf&lang=en
dc.identifier.urihttp://hdl.handle.net/20.500.12272/9486
dc.language.isoenges_ES
dc.relation.isreferencedbyBrazilian Journal of Physics, vol. 34, no. 4B, December, 2004.es_ES
dc.rightsopenAccesses_ES
dc.rights.holderKelly, Héctor.es_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.rights.uriAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.useCreative Commons http://creativecommons.org/licenses/by-nc-nd/4.0/ Attribution-NonCommercial-NoDerivatives 4.0 Internacional Este trabajo puede ser utilizado con fines académicos y de estudio.es_ES
dc.subjectHydrodynamic Model.es_ES
dc.subjectCutting Torch.es_ES
dc.subjectPlasma-Gas Flow.es_ES
dc.titleHydrodynamic Model for the Plasma-Gas Flow in a Cutting Torch Nozzle.es_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.type.versionacceptedVersiones_ES

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