Linear and non-linear features of the Taylor-Green dynamo

The Taylor-Green flow is a model flow sharing many properties with the von Kármán flow, in which experimental turbulent dynamo action has recently been achieved. We present here recent numerical results on the Taylor-Green dynamo instability, both in the linear and non-linear regime. Various propert...

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Detalles Bibliográficos
Autor principal: Mininni, Pablo Daniel
Publicado: 2008
Materias:
Dynamo
Magnetohydrodynamics
Taylor-Green
Turbulence
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310705_v9_n7_p749_Ponty
http://hdl.handle.net/20.500.12110/paper_16310705_v9_n7_p749_Ponty
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_16310705_v9_n7_p749_Ponty
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spelling paper:paper_16310705_v9_n7_p749_Ponty2023-06-08T16:25:37Z Linear and non-linear features of the Taylor-Green dynamo Mininni, Pablo Daniel Dynamo Magnetohydrodynamics Taylor-Green Turbulence The Taylor-Green flow is a model flow sharing many properties with the von Kármán flow, in which experimental turbulent dynamo action has recently been achieved. We present here recent numerical results on the Taylor-Green dynamo instability, both in the linear and non-linear regime. Various properties are considered, such as the influence of turbulence, the energy transfer between different scales, the spatial structure of the neutral mode, the nature of the bifurcation and the saturation mechanisms. We also discuss the role of the velocity fluctuations on the dynamo onset. To cite this article: Y. Ponty et al., C. R. Physique 9 (2008). © 2008 Académie des sciences. Fil:Mininni, P.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310705_v9_n7_p749_Ponty http://hdl.handle.net/20.500.12110/paper_16310705_v9_n7_p749_Ponty
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Dynamo
Magnetohydrodynamics
Taylor-Green
Turbulence
spellingShingle Dynamo
Magnetohydrodynamics
Taylor-Green
Turbulence
Mininni, Pablo Daniel
Linear and non-linear features of the Taylor-Green dynamo
topic_facet Dynamo
Magnetohydrodynamics
Taylor-Green
Turbulence
description The Taylor-Green flow is a model flow sharing many properties with the von Kármán flow, in which experimental turbulent dynamo action has recently been achieved. We present here recent numerical results on the Taylor-Green dynamo instability, both in the linear and non-linear regime. Various properties are considered, such as the influence of turbulence, the energy transfer between different scales, the spatial structure of the neutral mode, the nature of the bifurcation and the saturation mechanisms. We also discuss the role of the velocity fluctuations on the dynamo onset. To cite this article: Y. Ponty et al., C. R. Physique 9 (2008). © 2008 Académie des sciences.
author Mininni, Pablo Daniel
author_facet Mininni, Pablo Daniel
author_sort Mininni, Pablo Daniel
title Linear and non-linear features of the Taylor-Green dynamo
title_short Linear and non-linear features of the Taylor-Green dynamo
title_full Linear and non-linear features of the Taylor-Green dynamo
title_fullStr Linear and non-linear features of the Taylor-Green dynamo
title_full_unstemmed Linear and non-linear features of the Taylor-Green dynamo
title_sort linear and non-linear features of the taylor-green dynamo
publishDate 2008
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_16310705_v9_n7_p749_Ponty
http://hdl.handle.net/20.500.12110/paper_16310705_v9_n7_p749_Ponty
work_keys_str_mv AT mininnipablodaniel linearandnonlinearfeaturesofthetaylorgreendynamo
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