CREATE-FXB, a Fixed Boundary Code Based on Finite Element Methods for the Solution of the Grad–Shafranov Equation and Optimization of Equilibrium Currents

Raffaele Albanese (), Marco Neri and Pasquale Zumbolo
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Raffaele Albanese: DIETI, Università degli Studi di Napoli Federico II, Via Claudio 21, I-80125 Napoli, Italy
Marco Neri: DIETI, Università degli Studi di Napoli Federico II, Via Claudio 21, I-80125 Napoli, Italy
Pasquale Zumbolo: Consorzio CREATE, c/o Università degli Studi di Napoli Federico II, Via Claudio 21, I-80125 Napoli, Italy

Energies, 2025, vol. 18, issue 21, 1-15

Abstract: CREATE-FXB is a Finite Element Method solver specifically developed to address the fixed boundary problem, namely the determination of the Magnetohydrodynamic equilibrium of an axisymmetric plasma confined within a toroidal nuclear fusion device. Although several solvers are already available and widely used, CREATE-FXB represents a valuable alternative with further improvements, as it introduces a set of distinctive capabilities that extend its applicability and accuracy in modelling this class of problems. Its key features include the design of plasma scenarios in tokamaks, the derivation of linearized plasma response with high accuracy, the treatment of a wide class of current density profiles including non-smooth distributions, and an improved capability of interfacing with other existing codes.

Keywords: nuclear fusion; tokamaks; magnetohydrodynamics; fixed boundary problems; finite element methods; optimization problems (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2025
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