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

Junyi Cheng, Julien Dominski, Yang Chen, Haotian Chen, Gabriele Merlo, Seung Hoe Ku, Robert Hager, Choong Seock Chang, Eric Suchyta, Eduardo D'Azevedo, Stephane Ethier, Sarat Sreepathi, Scott Klasky, Frank Jenko, Amitava Bhattacharjee, Scott Parker

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

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. 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.

Original languageEnglish (US)
Article number122510
JournalPhysics of Plasmas
Volume27
Issue number12
DOIs
StatePublished - Dec 1 2020

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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