MHD stability of the MHH2 stellarator

Technical Report · Thu Dec 31 00:00:00 EST 1998

DOI:https://doi.org/10.2172/334076· OSTI ID:334076

Garabedian, P. R. ^[1]

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1. New York Univ., NY (United States). Courant Inst. of Mathematical Sciences

The NSTAB code provides a computer implementation of the variational principle of magnetohydrodynamics. Excellent resolution is obtained by combining a spectral representation in the toroidal and poloidal angles with a low order, but exceptionally accurate, finite difference scheme in the radial direction. Conservation form of the magnetostatics equations is used to capture islands and current sheets effectively on crude grids. This method enables one to discuss global stability by analyzing bifurcated solutions of the equilibrium problem. The author applies it to investigate the physics of the MHH2 stellarator, whose magnetic structure has a remarkable property of quasi-axial symmetry.

• Research Organization: Univ. of Wisconsin, Center for Plasma Theory and Computation, Madison, WI (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
• DOE Contract Number: FG02-86ER53223
• OSTI ID: 334076
• Report Number(s): CONF-9803121-PROC.; ON: DE99001004; TRN: 99:005152
• Resource Relation: Conference: Workshop on nonlinear MHD and extended MHD, Atlanta, GA (United States), 25-26 Mar 1998; Other Information: PBD: [1998]; Related Information: Is Part Of Proceedings of the workshop on nonlinear MHD and extended MHD; PB: [75] p.
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
N CODES
MAGNETOHYDRODYNAMICS
MESH GENERATION
MHD EQUILIBRIUM
STELLARATORS
PLASMA INSTABILITY
THEORETICAL DATA
PLASMA SIMULATION