On the contribution of the Hall term in small-scale magnetohydrodynamic dynamo
Fluid Dynamics
2023-06-01 v1
Abstract
A detailed study of small-scale Hall magnetohydrodynamic dynamo has been performed both analytically and numerically. Assuming the magnetic field and the current to be separate fields, the contribution of the Hall term has been decomposed into two parts and their individual contributions have been studied separately. Calculating the scale-separated transfer rates described in Dar \textit{et. al.} (Physica D, 157 (207), 2001), it is found that the small-scale current fields are the primary contributors in sustaining large scale magnetic fields. Furthermore, the nature of the scale-to-scale fluxes are found to be globally intact with the ion inertial scale.
Keywords
Cite
@article{arxiv.2303.07857,
title = {On the contribution of the Hall term in small-scale magnetohydrodynamic dynamo},
author = {Arijit Halder and Supratik Banerjee and Anando G. Chatterjee and Manohar K. Sharma},
journal= {arXiv preprint arXiv:2303.07857},
year = {2023}
}