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Numerical investigation of stability of low-current needle-to-plane negative corona discharges in air

2025-08-01Artigo científico Acesso aberto
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datacite.subject.fosCiências Naturais::Ciências Físicas
datacite.subject.fosEngenharia e Tecnologia::Outras Engenharias e Tecnologias
dc.contributor.authorFerreira, N. G. C.
dc.contributor.authorAlmeida, P. G. C.
dc.contributor.authorTaher, A. Eivazpour
dc.contributor.authorNaidis, G. V.
dc.contributor.authorBenilov, M. S .
dc.contributor.authorFerreira, Nuno
dc.contributor.authorAlmeida, Pedro G C
dc.contributor.authorBenilov, Mikhail
dc.contributor.authorBenilov, Mikhail
dc.date.accessioned2026-08-07T14:03:41Z
dc.date.available2026-08-07T14:03:41Z
dc.date.issued2025-08-01
dc.description.abstract<jats:title>Abstract</jats:title> <jats:p>Negative DC corona discharges are known for their self-pulsing regime: the Trichel pulses. In some works, pulsed regimes, stochastic or periodic, have been observed immediately upon the inception of the discharge, while in other works the discharge was found to be ignited in a steady-state (pulseless) mode, with the Trichel pulses developing at higher voltages. Recent theoretical and modeling work showed that the stationary negative corona between concentric cylinders in atmospheric-pressure air is stable immediately after the ignition. The pulseless mode was found also in the modeling of the needle-to-plane geometry, however in a quite narrow voltage range. This work studies conditions for a pulseless negative corona discharge in a needle-to-plane geometry to occur over a wide range of voltages, which will facilitate its unambiguous observation in the experiment. After the negative corona loses stability, the current evolution shows, after a small region of quasi-harmonic oscillations, pulses. These can be of small amplitude or regular Trichel pulses, which develop via standing-wave or ionization-wave mechanisms. Modeling results agree with available experimental data, both for the current–voltage characteristics and the stability limit of the pulseless negative corona discharge. An insight is given into stochastic Trichel pulses, which have been observed in experiments under certain conditions.</jats:p>eng
dc.description.sponsorshipThe work at the JIHT RAS was supported by the Ministry of ScienceandHigherEducation of theRussianFederation(State Assignment No. 075-00269-25-00).
dc.identifier.citationN G C Ferreira et al 2025 Plasma Sources Sci. Technol. 34 085002
dc.identifier.doi10.1088/1361-6595/adf5e5
dc.identifier.issn0963-0252
dc.identifier.issn1361-6595
dc.identifier.urihttp://hdl.handle.net/10400.13/7915
dc.language.isoeng
dc.peerreviewedyes
dc.publisherIOP Publishing
dc.relationInstitute for Plasmas and Nuclear Fusion
dc.relationUIDP/50010/2020
dc.relation"LA/P/0061/2020"
dc.relation.ispartofPlasma Sources Science and Technology
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectNumerical
dc.subjectInvestigation
dc.subjectStability
dc.subjectCoronas
dc.subjectDischarges
dc.subjectLow-current
dc.subject.
dc.subjectFaculdade de Ciências Exatas e da Engenharia
dc.titleNumerical investigation of stability of low-current needle-to-plane negative corona discharges in aireng
dc.typejournal article
dspace.entity.typePublication
oaire.awardNumberUIDP/50010/2020
oaire.awardTitleInstitute for Plasmas and Nuclear Fusion
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50010%2F2020/PT
oaire.citation.issue8
oaire.citation.titlePlasma Sources Science and Technology
oaire.citation.volume34
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.affiliation.nameUniversidade da Madeira
person.familyNameFerreira
person.familyNameAlmeida
person.familyNameBenilov
person.familyNameBenilov
person.givenNameNuno
person.givenNamePedro G C
person.givenNameMikhail
person.givenNameMikhail
person.identifier.ciencia-id5C17-5C53-4134
person.identifier.ciencia-idD61F-B90C-70B2
person.identifier.ciencia-id0F14-A79A-97C1
person.identifier.orcid0000-0001-5938-4182
person.identifier.orcid0000-0002-8395-2693
person.identifier.orcid0000-0001-9059-1948
person.identifier.orcid0000-0001-9059-1948
person.identifier.ridK-4443-2015
person.identifier.scopus-author-id56285111900
person.identifier.scopus-author-id8157100900
person.identifier.scopus-author-id7005138676
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
relation.isAuthorOfPublication2aa6b816-e5a7-44ad-bf35-6fa27b3936b4
relation.isAuthorOfPublicationc7346266-fe94-40ae-aa95-b576b0e1f3a6
relation.isAuthorOfPublication2c9ed988-f25e-4078-a806-e4e3842e0583
relation.isAuthorOfPublication5ccf95a3-53d5-446c-857c-55d64b887175
relation.isAuthorOfPublication.latestForDiscovery2aa6b816-e5a7-44ad-bf35-6fa27b3936b4
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