skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Coil current and vacuum magnetic flux calculation for axisymmetric equilibria

Abstract

In fixed-boundary axisymmetric equilibrium calculations the plasma shape is assigned from input. In several circumstances, the plasma shape may not be known a priori, or one may desire to also compute the magnetic field in the volume surrounding the plasma through the calculation of a free-boundary equilibrium. This requires either the coil currents or the magnetic poloidal flux on a curve in the vacuum region to be assigned as input for the free-boundary equilibrium calculation. The FREE-FIX code presented in this article is a general tool for calculating coil currents being given a fixed-boundary calculation. Finally, a new formulation is presented, which considerably reduces the computational cost of the calculation. FREE-FIX performs well for different geometries and experiments.

Authors:
ORCiD logo [1]
  1. Auburn Univ., AL (United States)
Publication Date:
Research Org.:
Auburn Univ., AL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1594951
Grant/Contract Number:  
SC0014196; FG02-93ER54215; S013799-F
Resource Type:
Accepted Manuscript
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 59; Journal Issue: 12; Journal ID: ISSN 0741-3335
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Guazzotto, L. Coil current and vacuum magnetic flux calculation for axisymmetric equilibria. United States: N. p., 2017. Web. doi:10.1088/1361-6587/aa8be4.
Guazzotto, L. Coil current and vacuum magnetic flux calculation for axisymmetric equilibria. United States. doi:10.1088/1361-6587/aa8be4.
Guazzotto, L. Thu . "Coil current and vacuum magnetic flux calculation for axisymmetric equilibria". United States. doi:10.1088/1361-6587/aa8be4. https://www.osti.gov/servlets/purl/1594951.
@article{osti_1594951,
title = {Coil current and vacuum magnetic flux calculation for axisymmetric equilibria},
author = {Guazzotto, L.},
abstractNote = {In fixed-boundary axisymmetric equilibrium calculations the plasma shape is assigned from input. In several circumstances, the plasma shape may not be known a priori, or one may desire to also compute the magnetic field in the volume surrounding the plasma through the calculation of a free-boundary equilibrium. This requires either the coil currents or the magnetic poloidal flux on a curve in the vacuum region to be assigned as input for the free-boundary equilibrium calculation. The FREE-FIX code presented in this article is a general tool for calculating coil currents being given a fixed-boundary calculation. Finally, a new formulation is presented, which considerably reduces the computational cost of the calculation. FREE-FIX performs well for different geometries and experiments.},
doi = {10.1088/1361-6587/aa8be4},
journal = {Plasma Physics and Controlled Fusion},
number = 12,
volume = 59,
place = {United States},
year = {2017},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

The equilibrium and stability of rotating plasmas
journal, January 1983


A model for transonic plasma flow
journal, February 2014

  • Guazzotto, Luca; Hameiri, Eliezer
  • Physics of Plasmas, Vol. 21, Issue 2
  • DOI: 10.1063/1.4866600

Use of the virtual-casing principle in calculating the containing magnetic field in toroidal plasma systems
journal, September 1972


Numerical study of tokamak equilibria with arbitrary flow
journal, February 2004

  • Guazzotto, L.; Betti, R.; Manickam, J.
  • Physics of Plasmas, Vol. 11, Issue 2
  • DOI: 10.1063/1.1637918

Magnetohydrodynamics equilibria with toroidal and poloidal flow
journal, May 2005

  • Guazzotto, L.; Betti, R.
  • Physics of Plasmas, Vol. 12, Issue 5
  • DOI: 10.1063/1.1869502

Computation of ideal MHD equilibria
journal, September 1976


Perturbed solutions of fixed boundary MHD equilibria
journal, January 2004


Exploration of spherical torus physics in the NSTX device
journal, March 2000


Big Dee - A Flexible Facility Operating Near Breakeven Conditions
journal, July 1985


Numerical study of tilt stability of prolate field-reversed configurations
journal, December 2000

  • Belova, E. V.; Jardin, S. C.; Ji, H.
  • Physics of Plasmas, Vol. 7, Issue 12
  • DOI: 10.1063/1.1318929

Kinetic effects on the stability properties of field-reversed configurations. II. Nonlinear evolution
journal, May 2004

  • Belova, Elena V.; Davidson, Ronald C.; Ji, Hantao
  • Physics of Plasmas, Vol. 11, Issue 5
  • DOI: 10.1063/1.1666293