TITLE

Effects of compressibility and heating in magnetohydrodynamics simulations of a reversed field pinch

AUTHOR(S)
Onofri, M.; Malara, F.; Veltri, P.
PUB. DATE
May 2009
SOURCE
Physics of Plasmas;May2009, Vol. 16 Issue 5, p052508
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The reversed field pinch is studied using numerical simulations of the compressible magnetohydrodynamics equations. Contrary to what has been done in previous works, the hypotheses of constant density and vanishing pressure are not used. Two cases are investigated. In the first case the pressure is derived from an adiabatic condition and in the second case the pressure equation includes heating terms due to resistivity and viscosity. The evolution of the reversal parameter and the production of single helicity or multiple helicity states are different in the two cases. The simulations show that the results are affected by compressibility and are very sensitive to hypotheses on heat production.
ACCESSION #
40637838

 

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