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Journal Articles Physical Review Letters Year : 2008

Rapid generation of angular momentum in bounded magnetized plasma

Abstract

Direct numerical simulations of two-dimensional decaying MHD turbulence in bounded domains show the rapid generation of angular momentum in nonaxisymmetric geometries. It is found that magnetic fluctuations enhance this mechanism. On a larger time scale, the generation of a magnetic angular momentum, or angular field, is observed. For axisymmetric geometries, the generation of angular momentum is absent; nevertheless, a weak magnetic field can be observed. The derived evolution equations for both the angular momentum and angular field yield possible explanations for the observed behavior.
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Dates and versions

hal-00442512 , version 1 (30-08-2010)

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Wouter J.T. Bos, Salah Neffaa, Kai Schneider. Rapid generation of angular momentum in bounded magnetized plasma. Physical Review Letters, 2008, 101, pp.235003. ⟨10.1103/PhysRevLett.101.235003⟩. ⟨hal-00442512⟩
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