Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range

Detalhes bibliográficos
Autor(a) principal: Silveira, Omar Junior Garcia
Data de Publicação: 2002
Outros Autores: Ziebell, Luiz Fernando, Gaelzer, Rudi, Yoon, Peter H.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/101350
Resumo: A local dispersion relation that describes inhomogeneity-driven instabilities in the lower-hybrid range is derived following a procedure that correctly describes energy exchange between waves and particles in inhomogeneous media, correcting some inherent ambiguities associated with the standard formalism found in the literature. Numerical solutions of this improved dispersion relation show that it constitutes a unified formulation for the instabilities in the lower-hybrid range, describing the so-called modified two-stream instability, excited by the ion cross-field drift, including the ion Weibel instability, and also describing the lower-hybrid drift instability, which is due to inhomogeneity effects on the electron population.
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spelling Silveira, Omar Junior GarciaZiebell, Luiz FernandoGaelzer, RudiYoon, Peter H.2014-08-19T02:10:22Z20021539-3755http://hdl.handle.net/10183/101350000314067A local dispersion relation that describes inhomogeneity-driven instabilities in the lower-hybrid range is derived following a procedure that correctly describes energy exchange between waves and particles in inhomogeneous media, correcting some inherent ambiguities associated with the standard formalism found in the literature. Numerical solutions of this improved dispersion relation show that it constitutes a unified formulation for the instabilities in the lower-hybrid range, describing the so-called modified two-stream instability, excited by the ion cross-field drift, including the ion Weibel instability, and also describing the lower-hybrid drift instability, which is due to inhomogeneity effects on the electron population.application/pdfengPhysical review. E, Statistical, nonlinear, and soft matter physics. Vol. 65, no. 3 (Mar. 2002), 036407, 11 p.Relações de dispersãoInstabilidade em plasmasUnified formulation for inhomogeneity-driven instabilities in the lower-hybrid rangeEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000314067.pdf000314067.pdfTexto completo (inglês)application/pdf233800http://www.lume.ufrgs.br/bitstream/10183/101350/1/000314067.pdfac674ebe18716313f3db6cd680630729MD51TEXT000314067.pdf.txt000314067.pdf.txtExtracted Texttext/plain40772http://www.lume.ufrgs.br/bitstream/10183/101350/2/000314067.pdf.txta6174a598de799c0cee29cfd3c8b8579MD52THUMBNAIL000314067.pdf.jpg000314067.pdf.jpgGenerated Thumbnailimage/jpeg1896http://www.lume.ufrgs.br/bitstream/10183/101350/3/000314067.pdf.jpg6717100e2b2499053ca8b88661cb9fe2MD5310183/1013502023-09-24 03:38:51.494071oai:www.lume.ufrgs.br:10183/101350Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-09-24T06:38:51Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
title Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
spellingShingle Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
Silveira, Omar Junior Garcia
Relações de dispersão
Instabilidade em plasmas
title_short Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
title_full Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
title_fullStr Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
title_full_unstemmed Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
title_sort Unified formulation for inhomogeneity-driven instabilities in the lower-hybrid range
author Silveira, Omar Junior Garcia
author_facet Silveira, Omar Junior Garcia
Ziebell, Luiz Fernando
Gaelzer, Rudi
Yoon, Peter H.
author_role author
author2 Ziebell, Luiz Fernando
Gaelzer, Rudi
Yoon, Peter H.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silveira, Omar Junior Garcia
Ziebell, Luiz Fernando
Gaelzer, Rudi
Yoon, Peter H.
dc.subject.por.fl_str_mv Relações de dispersão
Instabilidade em plasmas
topic Relações de dispersão
Instabilidade em plasmas
description A local dispersion relation that describes inhomogeneity-driven instabilities in the lower-hybrid range is derived following a procedure that correctly describes energy exchange between waves and particles in inhomogeneous media, correcting some inherent ambiguities associated with the standard formalism found in the literature. Numerical solutions of this improved dispersion relation show that it constitutes a unified formulation for the instabilities in the lower-hybrid range, describing the so-called modified two-stream instability, excited by the ion cross-field drift, including the ion Weibel instability, and also describing the lower-hybrid drift instability, which is due to inhomogeneity effects on the electron population.
publishDate 2002
dc.date.issued.fl_str_mv 2002
dc.date.accessioned.fl_str_mv 2014-08-19T02:10:22Z
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/101350
dc.identifier.issn.pt_BR.fl_str_mv 1539-3755
dc.identifier.nrb.pt_BR.fl_str_mv 000314067
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. E, Statistical, nonlinear, and soft matter physics. Vol. 65, no. 3 (Mar. 2002), 036407, 11 p.
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