Equilibrium calculations for helical axis stellarators

Technical Report · Sun Apr 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/5001896· OSTI ID:5001896

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 equilibium. 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 Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5001896
• Report Number(s): ORNL/TM-9147; ON: DE84010636
• Country of Publication: United States
• Language: English

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