Relaxation of the turbulent magnetosheath
Fluid Dynamics
2023-08-02 v1 Solar and Stellar Astrophysics
Plasma Physics
Space Physics
Abstract
In turbulence, nonlinear terms drive energy transfer from large-scale eddies into small scales through the so-called energy cascade. Turbulence often relaxes toward states that minimize energy; typically these states are considered globally. However, turbulence can also relax toward local quasi-equilibrium states, creating patches or cells where the magnitude of nonlinearity is reduced and energy cascade is impaired. We show, for the first time, compelling observational evidence that this ``cellularization'' of turbulence can occur due to local relaxation in a strongly turbulent natural environment such as the Earth's magnetosheath.
Cite
@article{arxiv.2302.00634,
title = {Relaxation of the turbulent magnetosheath},
author = {Francesco Pecora and Yan Yang and Alexandros Chasapis and Sergio Servidio and Manuel Cuesta and Sohom Roy and Rohit Chhiber and Riddhi Bandyopadhyay and D. J. Gershman and B. L. Giles and J. L. Burch and William H. Matthaeus},
journal= {arXiv preprint arXiv:2302.00634},
year = {2023}
}