Large-scale magnetic field sustainment by forced MHD wave turbulence
Galtier, S. and Nazarenko, Sergey. (2008) Large-scale magnetic field sustainment by forced MHD wave turbulence. Journal of Turbulence, Vol.9 (No.40). pp. 1-10. ISSN 1468-5248Full text not available from this repository.
Official URL: http://dx.doi.org/10.1080/14685240802512223
We investigate numerically the long-time behavior of balanced Alfven wave turbulence forced at intermediate scales. Whereas the usual constant flux solution is found at the smallest scales, two new scalings are obtained at the forcing scales and at the largest scales of the system. In the latter case we show, in particular, that the spectrum evolves first to a state determined by Loitsiansky invariant and later a state close to the thermodynamic equipartition solution predicted by wave turbulence. The astrophysical implications for galactic magnetic field regeneration are discussed.
|Item Type:||Journal Article|
|Subjects:||T Technology > TJ Mechanical engineering and machinery
Q Science > QC Physics
|Divisions:||Faculty of Science > Mathematics|
|Journal or Publication Title:||Journal of Turbulence|
|Publisher:||Taylor & Francis Ltd.|
|Number of Pages:||10|
|Page Range:||pp. 1-10|
|Access rights to Published version:||Restricted or Subscription Access|
|Funder:||PNST ( Programme National Soleil-Terre), INSU (CNRS), ANR|
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