Depression of nonlinearity in decaying isotropic MHD turbulence

Spectral method simulations show that undriven magnetohydrodynamic turbulence spontaneously generates coherent spatial correlations of several types, associated with local Beltrami fields, directional alignment of velocity and magnetic fields, and antialignment of magnetic and fluid acceleration com...

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Detalles Bibliográficos
Autor principal:	Dmitruk, Pablo Ariel
Publicado:	2008
Materias:	Computer simulation Control nonlinearities Correlation methods Magnetic fields Magnetohydrodynamics Beltrami fields Magnetohydrodynamic turbulence Turbulence
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v100_n9_p_Servidio http://hdl.handle.net/20.500.12110/paper_00319007_v100_n9_p_Servidio
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00319007_v100_n9_p_Servidio
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spelling	paper:paper_00319007_v100_n9_p_Servidio2023-06-08T14:57:47Z Depression of nonlinearity in decaying isotropic MHD turbulence Dmitruk, Pablo Ariel Computer simulation Control nonlinearities Correlation methods Magnetic fields Magnetohydrodynamics Beltrami fields Magnetohydrodynamic turbulence Turbulence Spectral method simulations show that undriven magnetohydrodynamic turbulence spontaneously generates coherent spatial correlations of several types, associated with local Beltrami fields, directional alignment of velocity and magnetic fields, and antialignment of magnetic and fluid acceleration components. These correlations suppress nonlinearity to levels lower than what is obtained from Gaussian fields, and occur in spatial patches. We suggest that this rapid relaxation leads to non-Gaussian statistics and spatial intermittency. © 2008 The American Physical Society. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v100_n9_p_Servidio http://hdl.handle.net/20.500.12110/paper_00319007_v100_n9_p_Servidio
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Computer simulation Control nonlinearities Correlation methods Magnetic fields Magnetohydrodynamics Beltrami fields Magnetohydrodynamic turbulence Turbulence
spellingShingle	Computer simulation Control nonlinearities Correlation methods Magnetic fields Magnetohydrodynamics Beltrami fields Magnetohydrodynamic turbulence Turbulence Dmitruk, Pablo Ariel Depression of nonlinearity in decaying isotropic MHD turbulence
topic_facet	Computer simulation Control nonlinearities Correlation methods Magnetic fields Magnetohydrodynamics Beltrami fields Magnetohydrodynamic turbulence Turbulence
description	Spectral method simulations show that undriven magnetohydrodynamic turbulence spontaneously generates coherent spatial correlations of several types, associated with local Beltrami fields, directional alignment of velocity and magnetic fields, and antialignment of magnetic and fluid acceleration components. These correlations suppress nonlinearity to levels lower than what is obtained from Gaussian fields, and occur in spatial patches. We suggest that this rapid relaxation leads to non-Gaussian statistics and spatial intermittency. © 2008 The American Physical Society.
author	Dmitruk, Pablo Ariel
author_facet	Dmitruk, Pablo Ariel
author_sort	Dmitruk, Pablo Ariel
title	Depression of nonlinearity in decaying isotropic MHD turbulence
title_short	Depression of nonlinearity in decaying isotropic MHD turbulence
title_full	Depression of nonlinearity in decaying isotropic MHD turbulence
title_fullStr	Depression of nonlinearity in decaying isotropic MHD turbulence
title_full_unstemmed	Depression of nonlinearity in decaying isotropic MHD turbulence
title_sort	depression of nonlinearity in decaying isotropic mhd turbulence
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v100_n9_p_Servidio http://hdl.handle.net/20.500.12110/paper_00319007_v100_n9_p_Servidio
work_keys_str_mv	AT dmitrukpabloariel depressionofnonlinearityindecayingisotropicmhdturbulence
_version_	1768541881565708288

Depression of nonlinearity in decaying isotropic MHD turbulence

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