Scale-hierarchy in homogeneous Hall MHD turbulence

Abstract eng:
Direct numerical simulations are carried out to study scale-hierarchy in homogeneous Hall magnetohydrodynamic turbulence. It is shown that Hall term can cause from sheet to tubular structure transition in the vorticity field, changing the local structures without a clear change in the energy spectrum. Longitudinal structure functions of the velocity field tends to be refracted at the scale comparable to the ion skin depth. A relation between the refraction of the structure functions and the vorticity field is discussed.

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