A critical transition of two-dimensional flow in toroidal geometry.
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| Title: | A critical transition of two-dimensional flow in toroidal geometry. |
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| Authors: | Agoua, Wesley1, Favier, Benjamin2, Morales, Jorge3, Bos, Wouter J. T.1 wouter.bos@ec-lyon.fr |
| Source: | Journal of Fluid Mechanics. 6/10/2024, Vol. 988, p1-15. 15p. |
| Subjects: | Turbulent mixing, Coherent structures, Axial flow, Transition flow, Plasma turbulence |
| Abstract: | We investigate two-dimensional (2-D) axisymmetric flow in toroidal geometry, with a focus on a transition between 2-D three-component flow and 2-D two-component flow. This latter flow state allows a self-organization of the system to a quiescent dynamics, characterized by long-living coherent structures. When these large-scale structures orient in the azimuthal direction, the radial transport is reduced. Such a transition, if it can be triggered in toroidally confined fusion plasmas, is beneficial for the generation of zonal flows and should consequently result in a flow field beneficial for confinement. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Fluid Mechanics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 178989473 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: A critical transition of two-dimensional flow in toroidal geometry. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Agoua%2C+Wesley%22">Agoua, Wesley</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Favier%2C+Benjamin%22">Favier, Benjamin</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Morales%2C+Jorge%22">Morales, Jorge</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Bos%2C+Wouter+J%2E+T%2E%22">Bos, Wouter J. T.</searchLink><relatesTo>1</relatesTo><i> wouter.bos@ec-lyon.fr</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Fluid+Mechanics%22">Journal of Fluid Mechanics</searchLink>. 6/10/2024, Vol. 988, p1-15. 15p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Turbulent+mixing%22">Turbulent mixing</searchLink><br /><searchLink fieldCode="DE" term="%22Coherent+structures%22">Coherent structures</searchLink><br /><searchLink fieldCode="DE" term="%22Axial+flow%22">Axial flow</searchLink><br /><searchLink fieldCode="DE" term="%22Transition+flow%22">Transition flow</searchLink><br /><searchLink fieldCode="DE" term="%22Plasma+turbulence%22">Plasma turbulence</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We investigate two-dimensional (2-D) axisymmetric flow in toroidal geometry, with a focus on a transition between 2-D three-component flow and 2-D two-component flow. This latter flow state allows a self-organization of the system to a quiescent dynamics, characterized by long-living coherent structures. When these large-scale structures orient in the azimuthal direction, the radial transport is reduced. Such a transition, if it can be triggered in toroidally confined fusion plasmas, is beneficial for the generation of zonal flows and should consequently result in a flow field beneficial for confinement. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Fluid Mechanics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1017/jfm.2024.425 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 1 Subjects: – SubjectFull: Turbulent mixing Type: general – SubjectFull: Coherent structures Type: general – SubjectFull: Axial flow Type: general – SubjectFull: Transition flow Type: general – SubjectFull: Plasma turbulence Type: general Titles: – TitleFull: A critical transition of two-dimensional flow in toroidal geometry. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Agoua, Wesley – PersonEntity: Name: NameFull: Favier, Benjamin – PersonEntity: Name: NameFull: Morales, Jorge – PersonEntity: Name: NameFull: Bos, Wouter J. T. IsPartOfRelationships: – BibEntity: Dates: – D: 10 M: 06 Text: 6/10/2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00221120 Numbering: – Type: volume Value: 988 Titles: – TitleFull: Journal of Fluid Mechanics Type: main |
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