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Abstract:

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.

Registro:

Documento: Artículo
Título:Depression of nonlinearity in decaying isotropic MHD turbulence
Autor:Servidio, S.; Matthaeus, W.H.; Dmitruk, P.
Filiación:Bartol Research Institute, Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, United States
Departmento de Física, Facultad de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Palabras clave:Computer simulation; Control nonlinearities; Correlation methods; Magnetic fields; Magnetohydrodynamics; Beltrami fields; Magnetohydrodynamic turbulence; Turbulence
Año:2008
Volumen:100
Número:9
DOI: http://dx.doi.org/10.1103/PhysRevLett.100.095005
Título revista:Physical Review Letters
Título revista abreviado:Phys Rev Lett
ISSN:00319007
CODEN:PRLTA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v100_n9_p_Servidio

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Citas:

---------- APA ----------
Servidio, S., Matthaeus, W.H. & Dmitruk, P. (2008) . Depression of nonlinearity in decaying isotropic MHD turbulence. Physical Review Letters, 100(9).
http://dx.doi.org/10.1103/PhysRevLett.100.095005
---------- CHICAGO ----------
Servidio, S., Matthaeus, W.H., Dmitruk, P. "Depression of nonlinearity in decaying isotropic MHD turbulence" . Physical Review Letters 100, no. 9 (2008).
http://dx.doi.org/10.1103/PhysRevLett.100.095005
---------- MLA ----------
Servidio, S., Matthaeus, W.H., Dmitruk, P. "Depression of nonlinearity in decaying isotropic MHD turbulence" . Physical Review Letters, vol. 100, no. 9, 2008.
http://dx.doi.org/10.1103/PhysRevLett.100.095005
---------- VANCOUVER ----------
Servidio, S., Matthaeus, W.H., Dmitruk, P. Depression of nonlinearity in decaying isotropic MHD turbulence. Phys Rev Lett. 2008;100(9).
http://dx.doi.org/10.1103/PhysRevLett.100.095005