Directional and scale-dependent statistics of quasi-static magnetohydrodynamic turbulence

Naoya Okamoto; Katsunori Yoshimatsu; Kai Schneider; Marie Farge

ESAIM: Proceedings (2011)

  • Volume: 32, page 95-102
  • ISSN: 1270-900X

Abstract

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Anisotropy and intermittency of quasi-static magnetohydrodynamic (MHD) turbulence in an imposed magnetic field are examined, using three-dimensional orthonormal wavelet analysis. Wavelets are an efficient tool to examine directional scale-dependent statistics, since they are based on well-localized functions in space, scale and direction. The analysis is applied to two turbulent MHD flows computed by direct numerical simulation with 5123 grid points and with different intensities of the imposed magnetic field. It is found that the imposed magnetic field plays an important role on the amplification of anisotropy and intermittency of the flow.

How to cite

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Okamoto, Naoya, et al. Cancès, E., et al, eds. "Directional and scale-dependent statistics of quasi-static magnetohydrodynamic turbulence." ESAIM: Proceedings 32 (2011): 95-102. <http://eudml.org/doc/251196>.

@article{Okamoto2011,
abstract = {Anisotropy and intermittency of quasi-static magnetohydrodynamic (MHD) turbulence in an imposed magnetic field are examined, using three-dimensional orthonormal wavelet analysis. Wavelets are an efficient tool to examine directional scale-dependent statistics, since they are based on well-localized functions in space, scale and direction. The analysis is applied to two turbulent MHD flows computed by direct numerical simulation with 5123 grid points and with different intensities of the imposed magnetic field. It is found that the imposed magnetic field plays an important role on the amplification of anisotropy and intermittency of the flow.},
author = {Okamoto, Naoya, Yoshimatsu, Katsunori, Schneider, Kai, Farge, Marie},
editor = {Cancès, E., Crouseilles, N., Guillard, H., Nkonga, B., Sonnendrücker, E.},
journal = {ESAIM: Proceedings},
language = {eng},
month = {11},
pages = {95-102},
publisher = {EDP Sciences},
title = {Directional and scale-dependent statistics of quasi-static magnetohydrodynamic turbulence},
url = {http://eudml.org/doc/251196},
volume = {32},
year = {2011},
}

TY - JOUR
AU - Okamoto, Naoya
AU - Yoshimatsu, Katsunori
AU - Schneider, Kai
AU - Farge, Marie
AU - Cancès, E.
AU - Crouseilles, N.
AU - Guillard, H.
AU - Nkonga, B.
AU - Sonnendrücker, E.
TI - Directional and scale-dependent statistics of quasi-static magnetohydrodynamic turbulence
JO - ESAIM: Proceedings
DA - 2011/11//
PB - EDP Sciences
VL - 32
SP - 95
EP - 102
AB - Anisotropy and intermittency of quasi-static magnetohydrodynamic (MHD) turbulence in an imposed magnetic field are examined, using three-dimensional orthonormal wavelet analysis. Wavelets are an efficient tool to examine directional scale-dependent statistics, since they are based on well-localized functions in space, scale and direction. The analysis is applied to two turbulent MHD flows computed by direct numerical simulation with 5123 grid points and with different intensities of the imposed magnetic field. It is found that the imposed magnetic field plays an important role on the amplification of anisotropy and intermittency of the flow.
LA - eng
UR - http://eudml.org/doc/251196
ER -

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