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Numerical analysis on the contribution of the singular perturbation by the Hall term to the spectrum of MHD turbulence using a shell model

Published online by Cambridge University Press:  20 December 2006

DAN HORI ,
MASARU FURUKAWA ,
SHUICHI OHSAKI ,
RYUSUKE NUMATA  and
ZENSHO YOSHIDA
DAN HORI
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8561, Japan
MASARU FURUKAWA
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8561, Japan
SHUICHI OHSAKI
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8561, Japan
RYUSUKE NUMATA
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8561, Japan
ZENSHO YOSHIDA
Affiliation:
Graduate School of Frontier Sciences, University of Tokyo, Kashiwanoha 5-1-5, Kashiwa-shi, Chiba 277-8561, Japan
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Abstract

We have developed a new shell model for the Hall magnetohydrodynamic (MHD) system to investigate the spectral properties of the plasma turbulence. Through the numerical simulation of the shell model, in the Hall MHD case, we find that the energy spectral index of the flow field indicates $-\frac53$ in the whole inertial range, while the energy spectral index of the magnetic field indicates $-\frac{5}{3}$($-\frac{7}{3}$) in the large- (small-)scale region of the inertial range. The simulation of the conventional MHD case was also carried out, and we find that the energy spectral index of both the flow and magnetic fields indicate $-\frac{5}{3}$.

Type
Papers
Information
Journal of Plasma Physics , Volume 72 , Issue 6 , December 2006 , pp. 965 - 970
Copyright
2006 Cambridge University Press

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