We present an explicit evidence, in the framework of 2-D MHD, of the existence of a stat in which energy is dissipated at a rate independent of the ohmic resistivity, thus proving the validity of a conjecture put forward more than twenty years ago, Matthaeus and Montgomery 1980. We also show that the time necessary to establish such a state is resistivity independent as well. The influence of the boundary conditions for achieving such conditions and the relevance of these results for the problem of coronal heating is discussed.
RESISTIVITY INDEPENDENT ALFVEN WAVES DISSIPATION / C. CHIUDERI. - STAMPA. - (1999), pp. 235-239. (Intervento presentato al convegno 8TH SOHO WORKSHOP: PLASMA DYNAMICS AND DIAGNOSTICS IN THE SOLAR TRANSITION REGION AND CORONA. tenutosi a PARIGI).
RESISTIVITY INDEPENDENT ALFVEN WAVES DISSIPATION
CHIUDERI, CLAUDIO
1999
Abstract
We present an explicit evidence, in the framework of 2-D MHD, of the existence of a stat in which energy is dissipated at a rate independent of the ohmic resistivity, thus proving the validity of a conjecture put forward more than twenty years ago, Matthaeus and Montgomery 1980. We also show that the time necessary to establish such a state is resistivity independent as well. The influence of the boundary conditions for achieving such conditions and the relevance of these results for the problem of coronal heating is discussed.
| File | Dimensione | Formato | |
|---|---|---|---|
|
1999ESASP_446__235C.pdf
Accesso chiuso
Tipologia:
Pdf editoriale (Version of record)
Licenza:
Tutti i diritti riservati
Dimensione
367.83 kB
Formato
Adobe PDF
|
367.83 kB | Adobe PDF | Richiedi una copia |
I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
