Drift reduced Landau fluid model for magnetized plasma turbulence simulations in BOUT++ framework

Zhu, Ben; Seto, Haruki; Xu, Xue-qiao; Yagi, Masatoshi

doi:10.1016/j.cpc.2021.108079

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Drift reduced Landau fluid model for magnetized plasma turbulence simulations in BOUT++ framework

Zhu, Ben·Seto, Haruki·Xu, Xue-qiao·Yagi, Masatoshi

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Abstract

Recently the drift-reduced Landau fluid six-field turbulence model within the BOUT++ framework has been upgraded. In particular, this new model employs a new normalization, adds a volumetric flux-driven source option, the Landau fluid closure for parallel heat flux and a Laplacian inversion solver which is able to capture $n$ = 0 axisymmetric mode evolution in realistic tokamak configurations. As we report here, these improvements substantially extended model's capability to study a wider range of tokamak edge phenomena, and are essential to build a fully self-consistent edge turbulence model capable of both transient (e.g., ELM, disruption) and transport time-scale simulations.

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70 PLASMA PHYSICS AND FUSION TECHNOLOGY Braginskii equations Landau fluid tokamak edge transport turbulence

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Zhu, Ben, Seto, Haruki, Xu, Xue-qiao, Yagi, Masatoshi. 2021-07-02. Drift reduced Landau fluid model for magnetized plasma turbulence simulations in BOUT++ framework. https://doi.org/10.1016/j.cpc.2021.108079

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