Coil current and vacuum magnetic flux calculation for axisymmetric equilibria
Abstract
In fixedboundary 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 freeboundary 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 freeboundary equilibrium calculation. The FREEFIX code presented in this article is a general tool for calculating coil currents being given a fixedboundary calculation. Finally, a new formulation is presented, which considerably reduces the computational cost of the calculation. FREEFIX performs well for different geometries and experiments.
 Authors:

 Auburn Univ., AL (United States)
 Publication Date:
 Research Org.:
 Auburn Univ., AL (United States)
 Sponsoring Org.:
 USDOE
 OSTI Identifier:
 1594951
 Grant/Contract Number:
 SC0014196; FG0293ER54215; S013799F
 Resource Type:
 Accepted Manuscript
 Journal Name:
 Plasma Physics and Controlled Fusion
 Additional Journal Information:
 Journal Volume: 59; Journal Issue: 12; Journal ID: ISSN 07413335
 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:10.1088/13616587/aa8be4.
Guazzotto, L. Coil current and vacuum magnetic flux calculation for axisymmetric equilibria. United States. https://doi.org/10.1088/13616587/aa8be4
Guazzotto, L. Thu .
"Coil current and vacuum magnetic flux calculation for axisymmetric equilibria". United States. https://doi.org/10.1088/13616587/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 fixedboundary 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 freeboundary 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 freeboundary equilibrium calculation. The FREEFIX code presented in this article is a general tool for calculating coil currents being given a fixedboundary calculation. Finally, a new formulation is presented, which considerably reduces the computational cost of the calculation. FREEFIX performs well for different geometries and experiments.},
doi = {10.1088/13616587/aa8be4},
journal = {Plasma Physics and Controlled Fusion},
number = 12,
volume = 59,
place = {United States},
year = {2017},
month = {10}
}
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Works referencing / citing this record:
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