Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.13/4398 |
Resumo: | Abstract Self-organized patterns of spots on a flat metallic anode in a cylindrical glow discharge tube are simulated. A standard model of glow discharges is used, comprising conservation and transport equations for a single species of ion and electrons, written with the use of the drift-diffusion and local-field approximations, and the Poisson equation. Only processes in the near-anode region are considered and the computation domain is the region between the anode and the discharge column. Multiple solutions, existing in the same range of discharge current and describing modes with and without anode spots, are computed for the first time. A reversal of the local anode current density in the spots was found, i.e. mini-cathodes are formed inside the spots or, as one could say, anode spots operate as a unipolar glow discharge. The solutions do not fit into the conventional pattern of self-organization in bistable nonlinear dissipative systems; In particular, the modes are not joined by bifurcations. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Self-consistent modeling of self-organized patterns of spots on anodes of DC glow dischargesSelf-organizationGlow dischargeAnode spotsDissipative structures.Faculdade de Ciências Exatas e da EngenhariaAbstract Self-organized patterns of spots on a flat metallic anode in a cylindrical glow discharge tube are simulated. A standard model of glow discharges is used, comprising conservation and transport equations for a single species of ion and electrons, written with the use of the drift-diffusion and local-field approximations, and the Poisson equation. Only processes in the near-anode region are considered and the computation domain is the region between the anode and the discharge column. Multiple solutions, existing in the same range of discharge current and describing modes with and without anode spots, are computed for the first time. A reversal of the local anode current density in the spots was found, i.e. mini-cathodes are formed inside the spots or, as one could say, anode spots operate as a unipolar glow discharge. The solutions do not fit into the conventional pattern of self-organization in bistable nonlinear dissipative systems; In particular, the modes are not joined by bifurcations.IOP PublishingDigitUMaBieniek, M. S.Almeida, P. G. C.Benilov, M. S.2022-07-13T08:44:07Z2018-01-01T00:00:00Z2018-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/4398engBieniek, M. S., Almeida, P. G. C., & Benilov, M. S. (2018). Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges. Plasma Sources Science and Technology, 27(5), 05LT03.10.1088/1361-6595/aac0e9info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-11T03:30:26Zoai:digituma.uma.pt:10400.13/4398Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:08:25.910690Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
title |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
spellingShingle |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges Bieniek, M. S. Self-organization Glow discharge Anode spots Dissipative structures . Faculdade de Ciências Exatas e da Engenharia |
title_short |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
title_full |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
title_fullStr |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
title_full_unstemmed |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
title_sort |
Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges |
author |
Bieniek, M. S. |
author_facet |
Bieniek, M. S. Almeida, P. G. C. Benilov, M. S. |
author_role |
author |
author2 |
Almeida, P. G. C. Benilov, M. S. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
DigitUMa |
dc.contributor.author.fl_str_mv |
Bieniek, M. S. Almeida, P. G. C. Benilov, M. S. |
dc.subject.por.fl_str_mv |
Self-organization Glow discharge Anode spots Dissipative structures . Faculdade de Ciências Exatas e da Engenharia |
topic |
Self-organization Glow discharge Anode spots Dissipative structures . Faculdade de Ciências Exatas e da Engenharia |
description |
Abstract Self-organized patterns of spots on a flat metallic anode in a cylindrical glow discharge tube are simulated. A standard model of glow discharges is used, comprising conservation and transport equations for a single species of ion and electrons, written with the use of the drift-diffusion and local-field approximations, and the Poisson equation. Only processes in the near-anode region are considered and the computation domain is the region between the anode and the discharge column. Multiple solutions, existing in the same range of discharge current and describing modes with and without anode spots, are computed for the first time. A reversal of the local anode current density in the spots was found, i.e. mini-cathodes are formed inside the spots or, as one could say, anode spots operate as a unipolar glow discharge. The solutions do not fit into the conventional pattern of self-organization in bistable nonlinear dissipative systems; In particular, the modes are not joined by bifurcations. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01T00:00:00Z 2018-01-01T00:00:00Z 2022-07-13T08:44:07Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.13/4398 |
url |
http://hdl.handle.net/10400.13/4398 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Bieniek, M. S., Almeida, P. G. C., & Benilov, M. S. (2018). Self-consistent modeling of self-organized patterns of spots on anodes of DC glow discharges. Plasma Sources Science and Technology, 27(5), 05LT03. 10.1088/1361-6595/aac0e9 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799129952849756160 |