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Relaxation of the turbulent magnetosheath

Authors :
Pecora, Francesco
Yang, Yan
Chasapis, Alexandros
Servidio, Sergio
Cuesta, Manuel
Roy, Sohom
Chhiber, Rohit
Bandyopadhyay, Riddhi
Gershman, D. J.
Giles, B. L.
Burch, J. L.
Matthaeus, William H.
Publication Year :
2023

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.

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.2302.00634
Document Type :
Working Paper
Full Text :
https://doi.org/10.1093/mnras/stad2232