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Title: Intercode comparison of gyrokinetic global electromagnetic modes

Abstract

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.

Authors:
; ; ; ;  [1];  [2]; ;  [3];  [4]
  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)
Publication Date:
OSTI Identifier:
22600073
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 7; Other Information: (c) 2016 EURATOM; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BENCHMARKS; COMPARATIVE EVALUATIONS; ELECTRONS; EQUATIONS; FLUCTUATIONS; GYROFREQUENCY; IMPLEMENTATION; INSTABILITY; IONS; LAGRANGIAN FUNCTION; PARTICLES

Citation Formats

Görler, T., E-mail: tobias.goerler@ipp.mpg.de, Tronko, N., Hornsby, W. A., Bottino, A., Sonnendrücker, E., Kleiber, R., Norscini, C., Grandgirard, V., and Jenko, F. Intercode comparison of gyrokinetic global electromagnetic modes. United States: N. p., 2016. Web. doi:10.1063/1.4954915.
Görler, T., E-mail: tobias.goerler@ipp.mpg.de, Tronko, N., Hornsby, W. A., Bottino, A., Sonnendrücker, E., Kleiber, R., Norscini, C., Grandgirard, V., & Jenko, F. Intercode comparison of gyrokinetic global electromagnetic modes. United States. doi:10.1063/1.4954915.
Görler, T., E-mail: tobias.goerler@ipp.mpg.de, Tronko, N., Hornsby, W. A., Bottino, A., Sonnendrücker, E., Kleiber, R., Norscini, C., Grandgirard, V., and Jenko, F. Fri . "Intercode comparison of gyrokinetic global electromagnetic modes". United States. doi:10.1063/1.4954915.
@article{osti_22600073,
title = {Intercode comparison of gyrokinetic global electromagnetic modes},
author = {Görler, T., E-mail: tobias.goerler@ipp.mpg.de and Tronko, N. and Hornsby, W. A. and Bottino, A. and Sonnendrücker, E. and Kleiber, R. and Norscini, C. and Grandgirard, V. and Jenko, F.},
abstractNote = {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.},
doi = {10.1063/1.4954915},
journal = {Physics of Plasmas},
number = 7,
volume = 23,
place = {United States},
year = {Fri Jul 15 00:00:00 EDT 2016},
month = {Fri Jul 15 00:00:00 EDT 2016}
}