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Spatial core-edge coupling of the particle-in-cell gyrokinetic codes GEM and XGC

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/5.0026043· OSTI ID:1810011
 [1];  [2];  [1];  [1];  [3];  [2];  [2];  [2];  [4];  [4];  [2];  [4];  [4];  [5];  [2];  [1]
  1. Univ. of Colorado, Boulder, CO (United States)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. Univ. of Texas, Austin, TX (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  5. Univ. of Texas, Austin, TX (United States); Max Planck Inst. for Plasma Physics, Garching (Germany)
+ Show Author Affiliations

Two existing particle-in-cell gyrokinetic codes, GEM for the core region and XGC for the edge region, have been successfully coupled with a spatial coupling scheme at the interface in a toroidal geometry. Additionally, a mapping technique is developed for transferring data between GEM's structured and XGC's unstructured meshes. Two examples of coupled simulations are presented to demonstrate the coupling scheme. The optimization of GEM for graphics processing unit is also presented.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725; AC02-05CH11231
OSTI ID:
1810011
Alternate ID(s):
OSTI ID: 1737699
Journal Information:
Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 12 Vol. 27; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
computer simulation
particle-in-cell method
plasma confinement
plasma dynamics
tokamaks