skip to main content

SciTech ConnectSciTech Connect

Title: Effects of the resistivity profile on the formation of a reversed configuration and single helicity states in compressible simulations of the reversed-field pinch

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.
Authors:
 [1] ;  [2]
  1. Tri Alpha Energy, P.O. Box 7010, Rancho Santa Margarita, California 92688 (United States)
  2. Dipartimento di Fisica, Università della Calabria, ponte P. Bucci, Cubo 31C, 87036 Rende (CS) (Italy)
Publication Date:
OSTI Identifier:
22218537
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 10; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; HELICITY; MAGNETIC FIELDS; MAGNETOHYDRODYNAMICS; PLASMA DENSITY; PLASMA PRESSURE; PLASMA RADIAL PROFILES; PLASMA SIMULATION; REVERSED-FIELD PINCH DEVICES; REVERSE-FIELD PINCH