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| Titel |
On wave turbulence in MHD |
| VerfasserIn |
S. Galtier, S. V. Nazarenko, A. C. Newell |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1023-5809
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| Digitales Dokument |
URL |
| Erschienen |
In: Nonlinear Processes in Geophysics ; 8, no. 3 ; Nr. 8, no. 3, S.141-150 |
| Datensatznummer |
250005515
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| Publikation (Nr.) |
 copernicus.org/npg-8-141-2001.pdf |
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| Zusammenfassung |
| We describe the
fundamental differences between weak (wave) turbulence in incompressible
and weakly compressible MHD at the level of three-wave interactions. The
main difference is in the structure of the resonant manifolds and the
mechanisms of redistribution of spectral densities along the applied
magnetic field B0. Similar to pure acoustic waves, a three-wave
resonance between collinear wave vectors is observed but, in addition, we
also have a resonance through tilted planes and spheres. The properties of
resonances and their consequences for the asymptotics are also discussed. |
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