Time decorrelation in isotropic magnetohydrodynamic turbulence

Time decorrelation in isotropic incompressible magnetohydrodynamic (MHD) turbulence is studied using three-dimensional numerical simulation. Eulerian and wavenumber-dependent correlation functions are obtained. Scaling with wavenumber separates effects of nonlinear distortion and effects of random s...

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Detalles Bibliográficos
Autores principales: Servidio, S., Carbone, V., Dmitruk, P., Matthaeus, W.H.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02955075_v96_n5_p_Servidio
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02955075_v96_n5_p_Servidio
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spelling todo:paper_02955075_v96_n5_p_Servidio2023-10-03T15:17:31Z Time decorrelation in isotropic magnetohydrodynamic turbulence Servidio, S. Carbone, V. Dmitruk, P. Matthaeus, W.H. Time decorrelation in isotropic incompressible magnetohydrodynamic (MHD) turbulence is studied using three-dimensional numerical simulation. Eulerian and wavenumber-dependent correlation functions are obtained. Scaling with wavenumber separates effects of nonlinear distortion and effects of random sweeping and Alfvénic wave propagation. Results show that the dominant effect is the combined influence of convective sweeping and Alfvénic propagation, both being nonlocal effects on small-scale fluctuations by large-scale fluctuations. This conclusion finds applications in space plasma observation, particle scattering, predictability, and turbulence theory. © Europhysics Letters Association. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02955075_v96_n5_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)
description Time decorrelation in isotropic incompressible magnetohydrodynamic (MHD) turbulence is studied using three-dimensional numerical simulation. Eulerian and wavenumber-dependent correlation functions are obtained. Scaling with wavenumber separates effects of nonlinear distortion and effects of random sweeping and Alfvénic wave propagation. Results show that the dominant effect is the combined influence of convective sweeping and Alfvénic propagation, both being nonlocal effects on small-scale fluctuations by large-scale fluctuations. This conclusion finds applications in space plasma observation, particle scattering, predictability, and turbulence theory. © Europhysics Letters Association.
format JOUR
author Servidio, S.
Carbone, V.
Dmitruk, P.
Matthaeus, W.H.
spellingShingle Servidio, S.
Carbone, V.
Dmitruk, P.
Matthaeus, W.H.
Time decorrelation in isotropic magnetohydrodynamic turbulence
author_facet Servidio, S.
Carbone, V.
Dmitruk, P.
Matthaeus, W.H.
author_sort Servidio, S.
title Time decorrelation in isotropic magnetohydrodynamic turbulence
title_short Time decorrelation in isotropic magnetohydrodynamic turbulence
title_full Time decorrelation in isotropic magnetohydrodynamic turbulence
title_fullStr Time decorrelation in isotropic magnetohydrodynamic turbulence
title_full_unstemmed Time decorrelation in isotropic magnetohydrodynamic turbulence
title_sort time decorrelation in isotropic magnetohydrodynamic turbulence
url http://hdl.handle.net/20.500.12110/paper_02955075_v96_n5_p_Servidio
work_keys_str_mv AT servidios timedecorrelationinisotropicmagnetohydrodynamicturbulence
AT carbonev timedecorrelationinisotropicmagnetohydrodynamicturbulence
AT dmitrukp timedecorrelationinisotropicmagnetohydrodynamicturbulence
AT matthaeuswh timedecorrelationinisotropicmagnetohydrodynamicturbulence
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