Surrogate approximation of the Grad–Shafranov free boundary problem via stochastic collocation on sparse grids
Abstract
In magnetic confinement fusion devices, the equilibrium configuration of a plasma is determined by the balance between the hydrostatic pressure in the fluid and the magnetic forces generated by an array of external coils and the plasma itself. The location of the plasma is not known a priori and must be obtained as the solution to a free boundary problem. The partial differential equation that determines the behavior of the combined magnetic...
Paper Details
Title
Surrogate approximation of the Grad–Shafranov free boundary problem via stochastic collocation on sparse grids
Published Date
Jan 1, 2022
Volume
448
Pages
110699 - 110699
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