Presenter Information

J. W. Schumer

Department

Nuclear Engineering and Radiation Science

Research Advisor

Mueller, Gary Edward, 1954-

Advisor's Department

Nuclear Engineering and Radiation Science

Abstract

Removal of thermalized alpha particles from deuterium- tritium (D-T) fusion plasmas can be accomplished through the use of divertor magnetic fields if the magnetohydrodynamic (MHD) equilibria is well understood [1]. Modifying a MHD variational energy principle for poloidal flux surfaces described by 𝒳 = 𝒳(ρ, θ) results in an inverse Fourier representation of the three-dimensional (3-D) equilibria solution. Application of the 𝒳 = 𝒳(ρ, θ) flux profile allows transformation of the magnetic field into a non-singular coordinate system along the divertor separatrix [2] and therefore, analysis of different divertor schemes. Derivation of the coupled, non-linear differential equations follows [5] except in the contravariant representation of the magnetic field. Theoretical background, formulation of the variational principle, benchmark results, and preliminary computations are presented.

Document Type

Report

Presentation Date

16 Apr 1992

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