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Numerical simulation of MHD turbulence in three dimensionsThe evolution of Alfvenic turbulence in 3D spherical geometry can now be studied. In simulations, a fast stream is sandwiched between two slower streams. The inflow is both supersonic and superAlfvenic. Alfven waves entering the box are convected into the medium and interact nonlinearly with the velocity shear and with any structures (i.e., flux tubes) that might be present. These initial simulations suggest that velocity shear, even in spherical geometry, is able to drive a turbulent cascade which results in approximately Kolmogoroff-like power spectra.
Document ID
19990056470
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Goldstein, M. L.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Roberts, D. A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Deane, A.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 19, 2013
Publication Date
December 1, 1997
Publication Information
Publication: Proceedings of the 31st ESALB Symposium on Correlated Phenomena at the Sun, in the Heliosphere and in Geospace
Subject Category
Plasma Physics
Distribution Limits
Public
Copyright
Other
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