On the use of the Prandtl mixing length model in the cutting torch modeling.

Autores
Mancinelli, Beatriz; Minotti, Fernando Oscar; Kelly, Héctor
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Minotti, Fernando Oscar. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Peer Reviewed
Materia
Physical
The Prandtl mixing length model
plasma
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/2264
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/2264
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling On the use of the Prandtl mixing length model in the cutting torch modeling.Mancinelli, BeatrizMinotti, Fernando OscarKelly, HéctorPhysicalThe Prandtl mixing length modelplasmaThe Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature.Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.Fil: Minotti, Fernando Oscar. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.Peer Reviewed2017-11-01T20:01:53Z2017-11-01T20:01:53Z2011-05-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/20.500.12272/2264enginfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Licencia Creative Commons. CC - BY - NC - NDAttribution-NonCommercial-NoDerivatives 4.0 Internacionalreponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2025-09-29T14:29:29Zoai:ria.utn.edu.ar:20.500.12272/2264instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2025-09-29 14:29:30.051Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv On the use of the Prandtl mixing length model in the cutting torch modeling.
title On the use of the Prandtl mixing length model in the cutting torch modeling.
spellingShingle On the use of the Prandtl mixing length model in the cutting torch modeling.
Mancinelli, Beatriz
Physical
The Prandtl mixing length model
plasma
title_short On the use of the Prandtl mixing length model in the cutting torch modeling.
title_full On the use of the Prandtl mixing length model in the cutting torch modeling.
title_fullStr On the use of the Prandtl mixing length model in the cutting torch modeling.
title_full_unstemmed On the use of the Prandtl mixing length model in the cutting torch modeling.
title_sort On the use of the Prandtl mixing length model in the cutting torch modeling.
dc.creator.none.fl_str_mv Mancinelli, Beatriz
Minotti, Fernando Oscar
Kelly, Héctor
author Mancinelli, Beatriz
author_facet Mancinelli, Beatriz
Minotti, Fernando Oscar
Kelly, Héctor
author_role author
author2 Minotti, Fernando Oscar
Kelly, Héctor
author2_role author
author
dc.subject.none.fl_str_mv Physical
The Prandtl mixing length model
plasma
topic Physical
The Prandtl mixing length model
plasma
dc.description.none.fl_txt_mv The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature.
Fil: Mancinelli, Beatriz. Universidad Tecnológica Nacional Facultad Regional Venado Tuerto. Departamento Ingeniería Electromecánica. Grupo de Descargas Eléctricas; Argentina.
Fil: Minotti, Fernando Oscar. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Fil: Kelly, Héctor. CONICET. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Instituto de Física del Plasma; Argentina.
Peer Reviewed
description The Prandtl mixing length model has been used to take into account the turbulent effects in a 30 A high-energy density cutting torch model. In particular, the model requires the introduction of only one adjustable coefficient c corresponding to the length of action of the turbulence. It is shown that the c value has little effect on the plasma temperature profiles outside the nozzle (the differences being less than 10 %), but severely affects the plasma velocity distribution, with differences reaching about 100 % at the middle of the nozzle-anode gap. Within the experimental uncertainties it was also found that the value c = 0.08 allows to reproduce both, the experimental data of velocity and temperature.
publishDate 2011
dc.date.none.fl_str_mv 2011-05-25
2017-11-01T20:01:53Z
2017-11-01T20:01:53Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/2264
url http://hdl.handle.net/20.500.12272/2264
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
Licencia Creative Commons. CC - BY - NC - ND
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
Licencia Creative Commons. CC - BY - NC - ND
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 12.559606

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