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Modeling ICRH and ICRH-NBI synergy in high power JET scenarios using European Transport Simulator (ETS)

Abstract : The European Integrated Modelling effort (EU-IM) provides the European Transport Simulator (ETS) [1] which was designed to simulate arbitrary tokamak plasma discharges. Two new 1D Fokker-Planck solvers have recently been implemented within ETS: StixRedist [3] and FoPla [4]. To ensure the CPU time remains acceptable, the latter was parallelized with a generic and easy to implement method. In this paper, it will be shown how these modules were integrated in the ETS workflow in particular a first approach adopted to reach a consistency between wave and Fokker-Planck equation resolution. Also, the Verification and Validation efforts will be discussed. JET shots were analyzed and the ETS predictions were cross-checked against earlier validated codes external to the EU-IM effort, TRANSP [5] in particular, as well as against experimental neutron yield data. A good agreement was obtained, both when comparing the predictions with other codes for cases within their reach (minority or beam populations) and with experimental neutron yield data. Simulations illustrating the exploitation of the nonlinear collision operator when solving a set of coupled Fokker-Planck equations for cases when majority species play a key role will be also shown.
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Submitted on : Friday, February 14, 2020 - 1:00:36 PM
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  • HAL Id : cea-02478917, version 1



P. Huynh, E. Lerche, D. van Eester, R. Bilato, J. Varje, et al.. Modeling ICRH and ICRH-NBI synergy in high power JET scenarios using European Transport Simulator (ETS). AIP Conference Proceedings, American Institute of Physics, In press. ⟨cea-02478917⟩



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