27–30 Jun 2022
Université de Fribourg
Europe/Zurich timezone

【221】Towards a hybrid kinetic-MHD spectral code to study instabilities of tokamak plasmas

28 Jun 2022, 19:00
1h 30m
Hall

Hall

Poster Applied Physics and Plasma Physics Poster Session

Speaker

Fabien Jeanquartier (Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC))

Description

Magnetohydrodynamics (MHD) is a powerful tool to assess the stability of laboratory plasmas. However, kinetic corrections to MHD can be crucial in the weakly collisional environment of a modern tokamak. The ultimate goal of this project is the implementation of a hybrid kinetic-MHD spectral code, which can capture kinetic effects while retaining the advantages and essential structure of the MHD problem. The equations to be numerically solved are presented in the case of a simplified test case. Following the van Kampen approach, the eigenvalue problem is expressed in standard linear form which is more convenient for numerical resolution than the nonlinear equations obtained using the traditional Landau approach.

Authors

Fabien Jeanquartier (Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC)) Jonathan Graves (Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC)) Mathias Hoppe (Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC)) Stephan Brunner (Ecole Polytechnique Fédérale de Lausanne (EPFL), Swiss Plasma Center (SPC))

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