Determination of plasma velocity from light fluctuations in a cutting torch

Measurements of plasma velocities in a 30 A high energy density cutting torch are reported. The velocity diagnostic is based on the analysis of the light fluctuations emitted by the arc which are assumed to propagate with the flow velocity. These light fluctuations originate from plasma temperature...

ver descrição completa

Detalhes bibliográficos
Autores: Prevosto, Leandro, Kelly, Hector Juan, Mancinelli, Beatriz Rosa
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/61506
Acesso em linha:http://hdl.handle.net/11336/61506
Access Level:acceso abierto
Palavra-chave:PLASMA VELOCITY
LIGHT FLUCTUATIONS
CUTTING TORCH
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
id AR_1ace131eeaffc8780b4908a3d2bdb091
oai_identifier_str oai:ri.conicet.gov.ar:11336/61506
network_acronym_str AR
network_name_str Argentina
repository_id_str
spelling Determination of plasma velocity from light fluctuations in a cutting torchPrevosto, LeandroKelly, Hector JuanMancinelli, Beatriz RosaPLASMA VELOCITYLIGHT FLUCTUATIONSCUTTING TORCHhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Measurements of plasma velocities in a 30 A high energy density cutting torch are reported. The velocity diagnostic is based on the analysis of the light fluctuations emitted by the arc which are assumed to propagate with the flow velocity. These light fluctuations originate from plasma temperature and plasma density fluctuations mainly due to hydrodynamic instabilities. Fast photodiodes are employed as the light sensors. The arc core velocity was obtained from spectrally filtered light fluctuations measurements using a band-pass filter to detect light emission fluctuations emitted only from the arc axis. Maximum plasma jet velocities of 5000 m s -1 close to the nozzle exit and about 2000 m s -1 close to the anode were found. The obtained velocity values are in good agreement with those values predicted by a numerical code for a similar torch to that employed in this work. © 2009 American Institute of Physics.Fil: Prevosto, Leandro. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Kelly, Hector Juan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Mancinelli, Beatriz Rosa. Universidad Tecnológica Nacional. Facultad Regional Venado Tuerto; ArgentinaAmerican Institute of Physics2009-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61506Prevosto, Leandro; Kelly, Hector Juan; Mancinelli, Beatriz Rosa; Determination of plasma velocity from light fluctuations in a cutting torch; American Institute of Physics; Journal of Applied Physics; 106; 5; 11-2009; 53308-533120021-8979CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.3213377info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T14:28:39Zoai:ri.conicet.gov.ar:11336/61506instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982024-05-08 14:28:39.369CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Determination of plasma velocity from light fluctuations in a cutting torch
title Determination of plasma velocity from light fluctuations in a cutting torch
spellingShingle Determination of plasma velocity from light fluctuations in a cutting torch
Prevosto, Leandro
PLASMA VELOCITY
LIGHT FLUCTUATIONS
CUTTING TORCH
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short Determination of plasma velocity from light fluctuations in a cutting torch
title_full Determination of plasma velocity from light fluctuations in a cutting torch
title_fullStr Determination of plasma velocity from light fluctuations in a cutting torch
title_full_unstemmed Determination of plasma velocity from light fluctuations in a cutting torch
title_sort Determination of plasma velocity from light fluctuations in a cutting torch
dc.creator.none.fl_str_mv Prevosto, Leandro
Kelly, Hector Juan
Mancinelli, Beatriz Rosa
author Prevosto, Leandro
author_facet Prevosto, Leandro
Kelly, Hector Juan
Mancinelli, Beatriz Rosa
author_role author
author2 Kelly, Hector Juan
Mancinelli, Beatriz Rosa
author2_role author
author
dc.subject.none.fl_str_mv PLASMA VELOCITY
LIGHT FLUCTUATIONS
CUTTING TORCH
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic PLASMA VELOCITY
LIGHT FLUCTUATIONS
CUTTING TORCH
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description Measurements of plasma velocities in a 30 A high energy density cutting torch are reported. The velocity diagnostic is based on the analysis of the light fluctuations emitted by the arc which are assumed to propagate with the flow velocity. These light fluctuations originate from plasma temperature and plasma density fluctuations mainly due to hydrodynamic instabilities. Fast photodiodes are employed as the light sensors. The arc core velocity was obtained from spectrally filtered light fluctuations measurements using a band-pass filter to detect light emission fluctuations emitted only from the arc axis. Maximum plasma jet velocities of 5000 m s -1 close to the nozzle exit and about 2000 m s -1 close to the anode were found. The obtained velocity values are in good agreement with those values predicted by a numerical code for a similar torch to that employed in this work. © 2009 American Institute of Physics.
publishDate 2009
dc.date.none.fl_str_mv 2009-11
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/11336/61506
Prevosto, Leandro; Kelly, Hector Juan; Mancinelli, Beatriz Rosa; Determination of plasma velocity from light fluctuations in a cutting torch; American Institute of Physics; Journal of Applied Physics; 106; 5; 11-2009; 53308-53312
0021-8979
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61506
identifier_str_mv Prevosto, Leandro; Kelly, Hector Juan; Mancinelli, Beatriz Rosa; Determination of plasma velocity from light fluctuations in a cutting torch; American Institute of Physics; Journal of Applied Physics; 106; 5; 11-2009; 53308-53312
0021-8979
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.3213377
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1799196459626659840
score 15.812429

Registos relacionados