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Conference papers
Modeling ICRH and ICRH-NBI synergy in high power jet scenarios using european transport simulator (ETS)
Abstract : In ITER, Neutral Beam Injection (NBI) and Ion Cyclotron Resonance Heating (ICRH) will be used to increase the
temperatures beyond what is achieved by ohmic heating. To be able to predict how ITER discharges will behave it
is necessary to have numerical tools capturing the dynamics sufficiently realistically. The European Integrated
Modelling effort (EU-IM) provides the European Transport Simulator (ETS) [1] which was designed to simulate
arbitrary tokamak plasma discharges. A first verification of ICRF full-wave codes was done in [2] but a detailed
study of the Fokker-Planck codes, that describe the collisional power redistribution of the heated ions to the bulk
plasma (via Coulomb collisions) was not done. Two 1D Fokker-Planck solvers for arbitrary distributions functions
have recently been implemented within ETS: StixRedist [3] and FoPla [4]. To ensure the CPU time remains
acceptable, the latter was parallelized. We discuss the integration and verification/validation of these modules in
the heating and current drive (H&CD) ETS workflow in high power JET-ILW discharges, drawing special attention
to the importance of the nonlinear collision operator when solving a set of coupled Fokker-Planck equations for
cases when majority species play a key .
https://hal-cea.archives-ouvertes.fr/cea-02478845
Contributor : Valerie Icard <>
Submitted on : Friday, February 14, 2020 - 12:58:18 PM
Last modification on : Saturday, February 15, 2020 - 1:28:37 AM
Long-term archiving on: : Friday, May 15, 2020 - 1:30:46 PM
Contributor : Valerie Icard <>
Submitted on : Friday, February 14, 2020 - 12:58:18 PM
Last modification on : Saturday, February 15, 2020 - 1:28:37 AM
Long-term archiving on: : Friday, May 15, 2020 - 1:30:46 PM