Linear stability of resistive MHD modes : Axisymmetric toroidal computation of the outer region matching data
In order to determine accurately the stability of tearing and resistive interchange modes in two-dimensional toroidal geometry, the PEST-3 code was developed. This code is based on solving the singular, zero-frequency ideal MHD equation in the plasma bulk and determining the outer data Delta', Gamma' and Alpha' needed to match the outer region solutions to those arising in the inner layers. This approach is numerically less demanding than solving the full set of resistive equations, and has the advantage of allowing the non-MHD theories of the non-ideal layers. Good convergence is ensured by the variational Galerkin scheme used to compute the outer matching data. To validate the code, the growth rate calculations of resistive kink modes which are reproduced in good agreement with those obtained by the full resistive MHD code MARS, are examined.
Bibliographic Reference: Report: LRP 487/93 EN (1993)
Availability: Available from Confédération Suisse, Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérale de Lausanne, 21 avenue des Bains, 1007 Lausanne (CH)
Record Number: 199311647 / Last updated on: 1994-11-28
Original language: en
Available languages: en