An inexact Newton algorithm for solving the tokamak edge plasma fluid equations on a multiply-connected domain
type: Item
instance of: scholarly article
title: An inexact Newton algorithm for solving the tokamak edge plasma fluid equations on a multiply-connected domain
zbMATH Open document ID: 0818.76069
author: D. A. Knoll
author: P. R. McHugh
published in: Journal of Computational Physics
publication date: 1995-04-05T00:00:00Z
review text: Newton's method is combined with a preconditioned conjugate gradient-like algorithm and finite volume discretization to solve the steady-state two- dimensional tokamak edge plasma fluid equations. A numerical evaluation of the Jacobian is employed. Mesh sequencing, pseudo-transient continuation, and adaptive damping are used to increase the radius of convergence. The computations are performed on a multiply-connected curvilinear geometry in a fully coupled manner. Simulations of a high recycling divertor and a gaseous divertor on the DIII-D tokamak geometry are used to demonstrate algorithm performance.
Mathematics Subject Classification ID: 76M25
Mathematics Subject Classification ID: 76X05
zbMATH DE Number: 740630
zbMATH Keywords: preconditioned conjugate gradient-like algorithm
zbMATH Keywords: finite volume discretization
zbMATH Keywords: Jacobian
zbMATH Keywords: pseudo-transient continuation
zbMATH Keywords: adaptive damping
zbMATH Keywords: radius of convergence
zbMATH Keywords: recycling divertor
zbMATH Keywords: gaseous divertor
MaRDI profile type: Publication
full work available at URL: jcph.1995.1027
OpenAlex ID: W2041394722
DOI: 10.1006/JCPH.1995.1027
description: scientific article; zbMATH DE number 740630