We study the impact of compressibility on twodimensional turbulent flows, such as those modeling astrophysical disks. We demonstrate that the direction of cascade undergoes continuous transition as the Mach number
In turbulence, nonlinear terms drive energy transfer from largescale eddies into small scales through the socalled energy cascade. Turbulence often relaxes toward states that minimize energy; typically these states are considered globally. However, turbulence can also relax toward local quasiequilibrium states, creating patches or cells where the magnitude of nonlinearity is reduced and the energy cascade is impaired. We show, using data from the Magnetospheric Multiscale (MMS) mission, and 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.
more » « less NSFPAR ID:
 10440319
 Publisher / Repository:
 Oxford University Press
 Date Published:
 Journal Name:
 Monthly Notices of the Royal Astronomical Society
 Volume:
 525
 Issue:
 1
 ISSN:
 00358711
 Format(s):
 Medium: X Size: p. 6772
 Size(s):
 ["p. 6772"]
 Sponsoring Org:
 National Science Foundation
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