Intercode comparison of gyrokinetic global electromagnetic modes

Journal Article · Fri Jul 15 00:00:00 EDT 2016 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4954915· OSTI ID:22600073

Tronko, N.; Hornsby, W. A.; Bottino, A.; Sonnendrücker, E. ^[1]; Kleiber, R. ^[2]; Norscini, C.; Grandgirard, V. ^[3]; Jenko, F. ^[4]

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1. Max Planck Institute for Plasma Physics, Boltzmannstr. 2, 85748 Garching (Germany)
2. Max Planck Institute for Plasma Physics, Wendelsteinstr. 1, 17491 Greifswald (Germany)
3. CEA, IRFM, F-13108 Saint-Paul-lez-Durance (France)
4. Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States)

Aiming to fill a corresponding lack of sophisticated test cases for global electromagnetic gyrokinetic codes, a new hierarchical benchmark is proposed. Starting from established test sets with adiabatic electrons, fully gyrokinetic electrons, and electrostatic fluctuations are taken into account before finally studying the global electromagnetic micro-instabilities. Results from up to five codes involving representatives from different numerical approaches as particle-in-cell methods, Eulerian and Semi-Lagrangian are shown. By means of spectrally resolved growth rates and frequencies and mode structure comparisons, agreement can be confirmed on ion-gyro-radius scales, thus providing confidence in the correct implementation of the underlying equations.

• OSTI ID: 22600073
• Journal Information: Physics of Plasmas, Vol. 23, Issue 7; Other Information: (c) 2016 EURATOM; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BENCHMARKS
COMPARATIVE EVALUATIONS
ELECTRONS
EQUATIONS
FLUCTUATIONS
GYROFREQUENCY
IMPLEMENTATION
INSTABILITY
IONS
LAGRANGIAN FUNCTION
PARTICLES