Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2022
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| _version_ | 1866929390088093696 |
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| author | Hager, Robert Ku, Seung-Hoe Sharma, A. Y. Chang, C. S. Churchill, R. M. |
| author_facet | Hager, Robert Ku, Seung-Hoe Sharma, A. Y. Chang, C. S. Churchill, R. M. |
| contents | The simplified delta-f mixed-variable/pull-back electromagnetic simulation algorithm implemented in XGC for core plasma simulations by M. Cole et al. [Phys. Plasmas 28, 034501 (2021)] has been generalized to a total-f electromagnetic algorithm that can include, for the first time, the boundary plasma in diverted magnetic geometry with neutral particle recycling, turbulence and neoclassical physics. The delta-f mixed-variable/pull-back electromagnetic is based on the pioneering work by Kleiber and Mischenko et al. [R. Kleiber et al., Phys. Plasmas 23, 032501 (2016); A. Mishchenko et al., Comput. Phys. Commun. 238, 194 (2019)]. An electromagnetic demonstration simulation is performed in a DIII-D-like, H-mode boundary plasma, including a corresponding comparative electrostatic simulation, which confirms that the electromagnetic simulation is necessary for a higher fidelity understanding of the electron particle and heat transport even at the low-beta pedestal foot in the vicinity of the magnetic separatrix. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2202_06124 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC Hager, Robert Ku, Seung-Hoe Sharma, A. Y. Chang, C. S. Churchill, R. M. Plasma Physics The simplified delta-f mixed-variable/pull-back electromagnetic simulation algorithm implemented in XGC for core plasma simulations by M. Cole et al. [Phys. Plasmas 28, 034501 (2021)] has been generalized to a total-f electromagnetic algorithm that can include, for the first time, the boundary plasma in diverted magnetic geometry with neutral particle recycling, turbulence and neoclassical physics. The delta-f mixed-variable/pull-back electromagnetic is based on the pioneering work by Kleiber and Mischenko et al. [R. Kleiber et al., Phys. Plasmas 23, 032501 (2016); A. Mishchenko et al., Comput. Phys. Commun. 238, 194 (2019)]. An electromagnetic demonstration simulation is performed in a DIII-D-like, H-mode boundary plasma, including a corresponding comparative electrostatic simulation, which confirms that the electromagnetic simulation is necessary for a higher fidelity understanding of the electron particle and heat transport even at the low-beta pedestal foot in the vicinity of the magnetic separatrix. |
| title | Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2202.06124 |