Equilibrium calculations for helical axis stellarators

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · Phys. Fluids; (United States)

DOI:https://doi.org/10.1063/1.864834· OSTI ID:6566557

Hender, T C; Carreras, B A

An average method based on a vacuum flux coordinate system is presented. This average method permits the study of helical axis stellarators with toroidally dominated shifts. An ordering is introduced, and to lowest order the toroidally averaged equilibrium equations are reduced to a Grad--Shafranov equation. Also, to lowest order, a Poisson-type equation is obtained for the toroidally varying corrections to the equilibrium. By including these corrections, systems that are toroidally dominated, but with significant helical distortion to the equilibrium, may be studied. Numerical solutions of the average method equations are shown to agree well with three-dimensional calculations.

• Research Organization: Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6566557
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 27:8; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
CALCULATION METHODS
CLOSED PLASMA DEVICES
CONFINEMENT
DIFFERENTIAL EQUATIONS
EQUATIONS
EQUILIBRIUM
HELICITY
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE PROPERTIES
PLASMA
PLASMA CONFINEMENT
POISSON EQUATION
STELLARATORS
THERMONUCLEAR DEVICES