Cross-verification of the global gyrokinetic codes GENE and XGC

Merlo, G.; Dominski, J.; Bhattacharjee, A.; Chang, C. S.; Jenko, F.; Ku, S.; Lanti, E.; Parker, S.

doi:10.1063/1.5036563

Cross-verification of the global gyrokinetic codes GENE and XGC

Journal Article · Fri Jun 22 00:00:00 EDT 2018 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.5036563· OSTI ID:1464510

Merlo, G. ^[1]; ^[2]; Bhattacharjee, A. ^[2]; ^[2]; Jenko, F. ^[3]; Ku, S. ^[2]; Lanti, E. ^[4]; Parker, S. ^[5]

The Univ. of Texas at Austin, Austin, TX (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
The Univ. of Texas at Austin, Austin, TX (United States); Max Planck Institute for Plasma Physics, Garching (Germany)
Ecole Polytechnique Federale de Lausanne (EPFL), Lausanne (Switzerland)
Univ. of Colorado, Boulder, CO (United States)

A detailed cross-verification between two global gyrokinetic codes, the core continuum code GENE and the edge particle-in-cell code XGC, for the linear and nonlinear simulations of ion-temperature-gradient modes is carried out. With the recent developments in the edge gyrokinetics, it may be feasible someday to describe the whole tokamak plasma on turbulence timescales using a coupled gyrokinetic simulation model. Before pursuing this, the core code (GENE) and the edge code (XGC) must be carefully benchmarked with each other. The present verification provides a solid basis for future code coupling research. Also included in the benchmarking is the global particle-in-cell code ORB5, to raise the confidence in the quality of the obtained results. An excellent agreement between all three codes is obtained. Lastly, in order to facilitate a benchmark framework for other codes, we make a specific effort to provide all the relevant input parameters and precise details for each code.

View Accepted Manuscript (DOE)

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: DOE Office of Science; USDOE

OSTI ID:: 1464510

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 6 Vol. 25; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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