Analytic force-free fields and F-theta curves for reversed field pinches
نویسندگان
چکیده
منابع مشابه
Modified polynomial function model for reversed-field pinches
A generalized analytic representation for the magnetic field and current density profiles in a reversed-field pinch (RFP) is proposed. These profiles have zero current density at the wall and finite plasma pressure. The profiles are characterized by two free parameters here taken to be the field-reversal parameter (F> and pinch parameter (0). From the profiles, many useful quantities such as ma...
متن کاملEX/P5-22 High density physics in Reversed Field Pinches: comparison with Tokamaks and Stellarators
Reversed Field Pinches (RFPs) share with Tokamaks and Stellarators the experimental evidence of an upper limit for the maximum value of the electron density at which they can operate. Above a certain density level, well described by the Greenwald law for Tokamaks and RFPs, a radiative collapse with strong plasma cooling is observed, predominantly due to processes occurring at the plasma boundar...
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Nonlinear simulation with a simple resistive magnetohydrodynamics model is used to investigate the stabilization of magnetic fluctuations in reversed-field pinch plasmas subject to pulsedparallel current drive (PPCD). Numerical results are diagnosed with computations of nonlinear power transfer and by evaluating sequences of profiles for linear stability. Results show that poloidal electric fie...
متن کاملEffects of three-dimensional electromagnetic structures on resistive-wall-mode stability of reversed field pinches.
In this Letter, the linear stability of the resistive wall modes (RWMs) in toroidal geometry for a reversed field pinch (RFP) plasma is studied. Three computational models are used: the cylindrical code ETAW, the toroidal MHD code MARS-F, and the CarMa code, able to take fully into account the effects of a three-dimensional conducting structure which mimics the real shell geometry of a reversed...
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ژورنال
عنوان ژورنال: Mathematical Modelling
سال: 1986
ISSN: 0270-0255
DOI: 10.1016/0270-0255(86)90062-x