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Comparing two non-equilibrium approaches to modelling of a free-burning arc

2013Journal article Open access
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dc.contributor.authorBaeva, M.
dc.contributor.authorUhrlandt, D.
dc.contributor.authorBenilov, M. S.
dc.contributor.authorCunha, M. D.
dc.date.accessioned2022-09-02T10:06:57Z
dc.date.available2022-09-02T10:06:57Z
dc.date.issued2013
dc.description.abstractTwo models of high-pressure arc discharges are compared with each other and with experimental data for an atmospheric-pressure free-burning arc in argon for arc currents of 20–200 A. The models account for space-charge effects and thermal and ionization non-equilibrium in somewhat different ways. One model considers space-charge effects, thermal and ionization non-equilibrium in the near-cathode region and thermal non-equilibrium in the bulk plasma. The other model considers thermal and ionization non-equilibrium in the entire arc plasma and space-charge effects in the near-cathode region. Both models are capable of predicting the arc voltage in fair agreement with experimental data. Differences are observed in the arc attachment to the cathode, which do not strongly affect the near-cathode voltage drop and the total arc voltage for arc currents exceeding 75 A. For lower arc currents the difference is significant but the arc column structure is quite similar and the predicted bulk plasma characteristics are relatively close to each other.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBaeva, M., Uhrlandt, D., Benilov, M. S., & Cunha, M. D. (2013). Comparing two non-equilibrium approaches to modelling of a free-burning arc. Plasma Sources Science and Technology, 22(6), 065017.pt_PT
dc.identifier.doi10.1088/0963-0252/22/6/065017pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4550
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIOP Publishingpt_PT
dc.relationModelling, understanding, and controlling self-organization phenomena in plasma-electrode interaction in gas discharges: from first principles to applications
dc.relationStrategic Project - UI 219 - 2011-2012
dc.relation.publisherversionhttps://iopscience.iop.org/article/10.1088/0963-0252/22/6/065017/metapt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectHigh-pressure arc dischargespt_PT
dc.subjectAtmospheric-pressure free-burning arcpt_PT
dc.subjectNon-equilibrium approachespt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências Exatas e da Engenhariapt_PT
dc.titleComparing two non-equilibrium approaches to modelling of a free-burning arcpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleModelling, understanding, and controlling self-organization phenomena in plasma-electrode interaction in gas discharges: from first principles to applications
oaire.awardTitleStrategic Project - UI 219 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FFIS-PLA%2F2708%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAT%2FUI0219%2F2011/PT
oaire.citation.issue6pt_PT
oaire.citation.startPage065017pt_PT
oaire.citation.titlePlasma Sources Science and Technologypt_PT
oaire.citation.volume22pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBenilov
person.familyNameCunha
person.givenNameMikhail
person.givenNameMário
person.identifier.ciencia-id0F14-A79A-97C1
person.identifier.orcid0000-0001-9059-1948
person.identifier.orcid0000-0002-0397-536X
person.identifier.ridK-4443-2015
person.identifier.scopus-author-id7005138676
person.identifier.scopus-author-id7102711276
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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