Numerical simulations of Hall MHD small-scale dynamos

Details Numerical simulations of Hall MHD small-scale dynamos Numerical simulations of Hall MHD small-scale dynamos

Nov 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hia....15..436g&link_type=abstract

Highlights of Astronomy, Volume 15, p. 436-437

Astronomy and Astrophysics

Astronomy

Ism, Magnetic Fields, Mhd, Turbulence

Scientific paper

Much of the progress in our understanding of dynamo mechanisms, has been made within the theoretical framework of magnetohydrodynamics (MHD). However, for sufficiently diffuse media, the Hall effect eventually becomes non-negligible. We present results from three dimensional simulations of the Hall-MHD equations subjected to random non-helical forcing. We study the role of the Hall effect in the dynamo efficiency for different values of the Hall parameter, using a pseudospectral code to achieve exponentially fast convergence.

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