Speaker
Dr
Chi-kwan Chan
Description
Goldreich & Sridhar (1995) proposed that MHD turbulence is
anisotropic. Energy cascades faster in directions that are
perpendicular to the background guide field. On one hand,
the (global) anisotropic spectrum is verified by numerical
simulations when there are strong guide fields. On the other
hand, local anisotropy is expected even the MHD turbulence
is globally isotropic. We extent the works by Cho & Vishniac
(2000) to study the cylindrically-integrated energy and
helicity spectra, with and without guide fields. We will
present preliminary result from this study.
