A Validation Roadmap of Multi-Physics Simulators of the Resonator of MW-Class CW Gyrotrons for Fusion Applications

Laura Savoldi, Konstantinos A. Avramidis, Ferran Albajar, Stefano Alberti, Alberto Leggieri and Francisco Sanchez
Additional contact information
Laura Savoldi: MAHTEP Group, Dipartimento Energia “Galileo Ferraris”, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy
Konstantinos A. Avramidis: IHM, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany
Ferran Albajar: Fusion for Energy, 08019 Barcelona, Spain
Stefano Alberti: Swiss Plasma Center, EPFL, CH-1015 Lausanne, Switzerland
Alberto Leggieri: Microwave & Imaging Solution, THALES, F-78141 Velizy-Villacoublay, France
Francisco Sanchez: Fusion for Energy, 08019 Barcelona, Spain

Energies, 2021, vol. 14, issue 23, 1-15

Abstract: For a few years the multi-physics modelling of the resonance cavity (resonator) of MW-class continuous-wave gyrotrons, to be employed for electron cyclotron heating and current drive in magnetic confinement fusion machines, has gained increasing interest. The rising target power of the gyrotrons, which drives progressively higher Ohmic losses to be removed from the resonator, together with the need for limiting the resonator deformation as much as possible, has put more emphasis on the thermal-hydraulic and thermo-mechanic modeling of the cavity. To cope with that, a multi-physics simulator has been developed in recent years in a shared effort between several European institutions (the Karlsruher Institut für Technologie and Politecnico di Torino, supported by Fusion for Energy). In this paper the current status of the tool calibration and validation is addressed, aiming at highlighting where any direct or indirect comparisons with experimental data are missing and suggesting a possible roadmap to fill that gap, taking advantage of forthcoming tests in Europe.

Keywords: gyrotron resonator; multi-physic simulation; thermal-hydraulics; cooling; mini-channels; Raschig rings; validation (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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