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Corrigendum : Extended Magneto-Hydro-Dynamic model for Neoclassical Tearing Mode computations

Abstract : An extended fluid model covering neoclassical physics has been implemented in the XTOR code for Magneto-Hydro-Dynamic computations and is described in [1]. This model allows recovering neoclassical flux average quantities like the bootstrap current and the poloidal ion flow, and in the presence of a magnetic island, it generates a drive for Neoclassical Tearing Modes. The contribution of parallel heat fluxes on the bootstrap current is significant, and it was retained in the simulations presented in this paper. However, we have realized that the closure that is used for these parallel heat fluxes does not meet an important constraint on its spatial distribution, and although this does not change the equilibrium quantities, we do see an impact on the dynamics of the magnetic island. In the following, we propose a different closure that satisfies this constraint, and we also present a slight modification of the neoclassical implementation in the momentum equation. In order to show how these modifications impact the simulations, we present a limited number of examples performed with the new model, with diagnostics tools allowing a better understanding of the physics at play.
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Submitted on : Friday, March 8, 2019 - 3:23:58 PM
Last modification on : Wednesday, March 2, 2022 - 3:08:58 AM
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  • HAL Id : cea-02062087, version 1


Patrick Maget, Olivier Février, Xavier Garbet, Hinrich Lütjens, Jean-François Luciani, et al.. Corrigendum : Extended Magneto-Hydro-Dynamic model for Neoclassical Tearing Mode computations. Nuclear Fusion, IOP Publishing, 2019, 59 (4), pp.049501. ⟨cea-02062087⟩



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