Gyrokinetic full-f particle-in-cell simulations on open field lines with PICLS

While in recent years gyrokinetic simulations have become the workhorse for theoretical turbulence and transport studies in the plasma core, their application to the edge and scrape-off layer (SOL) region presents significant challenges. In particular, steep density and temperature gradients as well...

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Bibliographic Details
Published in:Physics of plasmas 2019-12, Vol.26 (12)
Main Authors: Boesl, M., Bergmann, A., Bottino, A., Coster, D., Lanti, E., Ohana, N., Jenko, F.
Format: Article
Language:English
Subjects:
Computer simulation
Particle in cell technique
Plasma physics
Temperature gradients
Transport
Variation
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Summary:While in recent years gyrokinetic simulations have become the workhorse for theoretical turbulence and transport studies in the plasma core, their application to the edge and scrape-off layer (SOL) region presents significant challenges. In particular, steep density and temperature gradients as well as large fluctuation amplitudes call for a “full-f” treatment. To specifically study problems in the SOL region, the gyrokinetic particle-in-cell (PIC) code PICLS has been developed. The code is based on an electrostatic full-f model with linearized field equations and uses kinetic electrons. Here, the well-studied parallel transport problem during an edge-localized mode in the SOL shall be investigated for one spatial dimension. The results are compared to previous gyrokinetic continuum and fully kinetic PIC simulations and show good agreement.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.5121262