Von Kármán-Howarth equation for three-dimensional two-fluid plasmas

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We derive the von Kármán-Howarth equation for a full three-dimensional incompressible two-fluid plasma. In the long-time limit and for very large Reynolds numbers we obtain the equivalent of the hydrodynamic "four-fifths" law. This exact law predicts the scaling of the third-order two-poin...

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Autores principales:	Andrés, N., Mininni, P.D., Dmitruk, P., Gómez, D.O.
Formato:	JOUR
Materias:	Reynolds number Full three-dimensional In-situ measurement Simple expression Third order Turbulent dynamics Two point correlation functions Two-fluid plasmas Plasma devices
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_24700045_v93_n6_p_Andres
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_24700045_v93_n6_p_Andres
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spelling	todo:paper_24700045_v93_n6_p_Andres2023-10-03T16:42:17Z Von Kármán-Howarth equation for three-dimensional two-fluid plasmas Andrés, N. Mininni, P.D. Dmitruk, P. Gómez, D.O. Reynolds number Full three-dimensional In-situ measurement Simple expression Third order Turbulent dynamics Two point correlation functions Two-fluid plasmas Plasma devices We derive the von Kármán-Howarth equation for a full three-dimensional incompressible two-fluid plasma. In the long-time limit and for very large Reynolds numbers we obtain the equivalent of the hydrodynamic "four-fifths" law. This exact law predicts the scaling of the third-order two-point correlation functions, and puts a strong constraint on the plasma turbulent dynamics. Finally, we derive a simple expression for the 4/5 law in terms of third-order structure functions, which is appropriate for comparison with in situ measurements in the solar wind at different spatial ranges. © 2016 American Physical Society. Fil:Andrés, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mininni, P.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dmitruk, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Gómez, D.O. 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_24700045_v93_n6_p_Andres
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Reynolds number Full three-dimensional In-situ measurement Simple expression Third order Turbulent dynamics Two point correlation functions Two-fluid plasmas Plasma devices
spellingShingle	Reynolds number Full three-dimensional In-situ measurement Simple expression Third order Turbulent dynamics Two point correlation functions Two-fluid plasmas Plasma devices Andrés, N. Mininni, P.D. Dmitruk, P. Gómez, D.O. Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
topic_facet	Reynolds number Full three-dimensional In-situ measurement Simple expression Third order Turbulent dynamics Two point correlation functions Two-fluid plasmas Plasma devices
description	We derive the von Kármán-Howarth equation for a full three-dimensional incompressible two-fluid plasma. In the long-time limit and for very large Reynolds numbers we obtain the equivalent of the hydrodynamic "four-fifths" law. This exact law predicts the scaling of the third-order two-point correlation functions, and puts a strong constraint on the plasma turbulent dynamics. Finally, we derive a simple expression for the 4/5 law in terms of third-order structure functions, which is appropriate for comparison with in situ measurements in the solar wind at different spatial ranges. © 2016 American Physical Society.
format	JOUR
author	Andrés, N. Mininni, P.D. Dmitruk, P. Gómez, D.O.
author_facet	Andrés, N. Mininni, P.D. Dmitruk, P. Gómez, D.O.
author_sort	Andrés, N.
title	Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
title_short	Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
title_full	Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
title_fullStr	Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
title_full_unstemmed	Von Kármán-Howarth equation for three-dimensional two-fluid plasmas
title_sort	von kármán-howarth equation for three-dimensional two-fluid plasmas
url	http://hdl.handle.net/20.500.12110/paper_24700045_v93_n6_p_Andres
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Von Kármán-Howarth equation for three-dimensional two-fluid plasmas

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