Up-down symmetry of the turbulent transport of toroidal angular momentum in tokamaks
Two symmetries of the local nonlinear delta-f gyrokinetic system of equations in tokamaks in the high flow regime are presented. The turbulent transport of toroidal angular momentum changes sign under an up-down reflection of the tokamak and a sign change of both the rotation and the rotation shear....
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2011
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| _version_ | 1797070530716631040 |
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| author | Parra, F Barnes, M Peeters, A |
| author_facet | Parra, F Barnes, M Peeters, A |
| author_sort | Parra, F |
| collection | OXFORD |
| description | Two symmetries of the local nonlinear delta-f gyrokinetic system of equations in tokamaks in the high flow regime are presented. The turbulent transport of toroidal angular momentum changes sign under an up-down reflection of the tokamak and a sign change of both the rotation and the rotation shear. Thus, the turbulent transport of toroidal angular momentum must vanish for up-down symmetric tokamaks in the absence of both rotation and rotation shear. This has important implications for the modeling of spontaneous rotation. |
| first_indexed | 2024-03-06T22:40:13Z |
| format | Journal article |
| id | oxford-uuid:5b4a55ca-fded-409a-ab39-2613d10a8730 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:40:13Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:5b4a55ca-fded-409a-ab39-2613d10a87302022-03-26T17:21:10ZUp-down symmetry of the turbulent transport of toroidal angular momentum in tokamaksJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5b4a55ca-fded-409a-ab39-2613d10a8730EnglishSymplectic Elements at Oxford2011Parra, FBarnes, MPeeters, ATwo symmetries of the local nonlinear delta-f gyrokinetic system of equations in tokamaks in the high flow regime are presented. The turbulent transport of toroidal angular momentum changes sign under an up-down reflection of the tokamak and a sign change of both the rotation and the rotation shear. Thus, the turbulent transport of toroidal angular momentum must vanish for up-down symmetric tokamaks in the absence of both rotation and rotation shear. This has important implications for the modeling of spontaneous rotation. |
| spellingShingle | Parra, F Barnes, M Peeters, A Up-down symmetry of the turbulent transport of toroidal angular momentum in tokamaks |
| title | Up-down symmetry of the turbulent transport of toroidal angular momentum
in tokamaks |
| title_full | Up-down symmetry of the turbulent transport of toroidal angular momentum
in tokamaks |
| title_fullStr | Up-down symmetry of the turbulent transport of toroidal angular momentum
in tokamaks |
| title_full_unstemmed | Up-down symmetry of the turbulent transport of toroidal angular momentum
in tokamaks |
| title_short | Up-down symmetry of the turbulent transport of toroidal angular momentum
in tokamaks |
| title_sort | up down symmetry of the turbulent transport of toroidal angular momentum in tokamaks |
| work_keys_str_mv | AT parraf updownsymmetryoftheturbulenttransportoftoroidalangularmomentumintokamaks AT barnesm updownsymmetryoftheturbulenttransportoftoroidalangularmomentumintokamaks AT peetersa updownsymmetryoftheturbulenttransportoftoroidalangularmomentumintokamaks |