Electronic Resource
New York, NY
:
American Institute of Physics (AIP)
Physics of Fluids
4 (1992), S. 2024-2025
ISSN:
1089-7666
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Recently, a formalism was presented for representing magnetic fields with toroidal topology in terms of field-line invariants [Phys. Fluids B 2, 2551 (1990)]. The representation of a field with a nonvanishing toroidal component depends on a transformation from toroidal coordinates to a set of variables consisting of a poloidal angle function, a toroidal flux function, and a toroidal angle function. A restricted class of such transformations was considered for vacuum fields. Here it is shown that this class of transformations for a vacuum or force-free field always requires that the field be axisymmetric.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.860010
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