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Effects of the resistivity profile on the formation of a reversed configuration and single helicity states in compressible simulations of the reversed-field pinch
- Source :
- Physics of Plasmas. 20:102514
- Publication Year :
- 2013
- Publisher :
- AIP Publishing, 2013.
-
Abstract
- Compressible magnetohydrodynamics simulations of the reversed-field pinch (RFP) are presented. Previous simulations of the RFP, including density and pressure evolution, showed that a stationary state with a reversed toroidal magnetic field could not be obtained, contrary to the results produced with numerical codes neglecting density and pressure dynamics. The simulations described in the present paper show that including density and pressure evolution, a stationary RFP configuration can be obtained if the resistivity has a radial profile steeply increasing close to the wall. Such resistivity profile is more realistic than a uniform resistivity, since the temperature at the wall is lower than in the plasma core.
Details
- ISSN :
- 10897674 and 1070664X
- Volume :
- 20
- Database :
- OpenAIRE
- Journal :
- Physics of Plasmas
- Accession number :
- edsair.doi...........da5cb190753336f7de2935aa8eab17a4
- Full Text :
- https://doi.org/10.1063/1.4826222