A computational model describing confinement and performance of circular and D-shaped tokamak plasmas
type: Item
instance of: scholarly article
title: A computational model describing confinement and performance of circular and D-shaped tokamak plasmas
zbMATH Open document ID: 0656.76098
DOI: 10.1016/0021-9991(89)90092-2
author: A. Nicolai
author: P. Börner
published in: Journal of Computational Physics
publication date: 1989-01-01T00:00:00Z
review text: A combined one-dimensional and two-dimensional description of toroidal and axisymmetric plasmas is presented which is based essentially on an equilibrium solver resorting to the fast Buneman invertor (``equilibrium module'') and two one-dimensional transport codes describing the protium, deuterium, tritium, and plasma energy inventory (``plasma module'') and accounting for three impurity species (``impurity module''); it is employed to compute the time evolution of tokamak plasmas. The attempt was made to achieve a consistent modelling of the transport and equilibrium phenomena in a plasma which interacts with the peripheral devices for e.g., confinement, plasma heating, and limitation of the plasma aperture. The equilibrium solver is connected to a coil submodule computing the poloidal field coil currents maintaining the designed plasma shape approximately. A surface current density accounting for the magnetization of the iron core and the yokes is calculated by means of the module for the transformer iron. This module is linked to the equilibrium solver as well so that consistency between the coil currents, the plasma current distribution, and the magnetization of the transformer iron is achieved. The ``scrape-off module'' resorts to a radial model for the limiters. The modules for additional heating account for a full beam geometry within a simple approach for the RF-heating. The neutral atomic and molecular hydrogen species are described by a multidimensional Monte Carlo code, or, alternatively, by the fast 1D-code SPUDNUT (``neutral gas module''). The MHD behaviour is estimated by evaluating the time evolution of the Mercier and the resistive interchange criteria (``stability module''). The calculations which are based on TEXTOR, JET, and INTOR data resort preferentially to the equilibrium, the coil, and the transformer module.
Mathematics Subject Classification ID: 76X05
Mathematics Subject Classification ID: 76M99
Mathematics Subject Classification ID: 65C05
zbMATH DE Number: 4072643
zbMATH Keywords: combined one-dimensional and two-dimensional description
zbMATH Keywords: axisymmetric plasmas
zbMATH Keywords: equilibrium solver
zbMATH Keywords: fast Buneman invertor
zbMATH Keywords: equilibrium module
zbMATH Keywords: one-dimensional transport codes
zbMATH Keywords: tokamak plasmas
zbMATH Keywords: multidimensional Monte Carlo code
zbMATH Keywords: SPUDNUT
zbMATH Keywords: MHD behaviour
zbMATH Keywords: TEXTOR
zbMATH Keywords: JET
zbMATH Keywords: INTOR
describes a project that uses: SPUDNUT
MaRDI profile type: Publication
full work available at URL: 0021-9991(89)90092-2
OpenAlex ID: W2065888092
cites work: Q3242943
cites work: Variational moment solutions to the Grad–Shafranov equation
cites work: A multicode describing the time evolution of the atomic protium, deuterium, and tritium densities in the first wall of a Tokamak reactor
cites work: 3D nonlinear calculations of resistive tearing modes
description: scientific article; zbMATH DE number 4072643