Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC

Abstract

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.

References in corpus (5)

• Pullback transformation in gyrokinetic electromagnetic simulations
• Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC
• Verification of a Fully Implicit Particle-in-Cell Method for the $v_{\parallel }$ Formalism of Electromagnetic Gyrokinetics in the XGC Code
• Plasma turbulence simulations with X-points using the flux-coordinate independent approach
• Implementation of higher-order velocity mapping between marker particles and grid in the particle-in-cell code XGC

Cited by in corpus (6)

• Electromagnetic total-f algorithm for gyrokinetic particle-in-cell simulations of boundary plasma in XGC
• Magnetic flutter effect on validated edge turbulence simulations
• Gyrokinetic simulations of turbulence and zonal flows driven by steep profile gradients using a delta-f approach with an evolving background Maxwellian
• Neoclassical transport of tungsten ion bundles in total-f neoclassical gyrokinetic simulations of a whole-volume JET-like plasma
• Detecting Shearless Phase-Space Transport Barriers in Global Gyrokinetic Turbulence Simulations with Test Particle Map Models
• Simplicial Approximation of Deforming 3D Spaces for Visualizing Fusion Plasma Simulation Data