Physics of Plasmas • Vol 30 • No 11
Effect of neutral interactions on parallel transport and blob dynamics in gyrokinetic scrape-off layer simulations
November 2023 • T. N. Bernard, Federico David Halpern, Manaure Francisquez, James Juno, Noah Mandell, G. W. Hammett, Ammar Hakim, E. J. Humble, Rupak Mukherjee
The effect of neutral interactions on scrape-off layer (SOL) turbulence is investigated in a continuum gyrokinetic code that has been coupled to a continuum kinetic model of neutral transport. This extends the work of a previous paper [T. N. Bernard et al., Phys. Plasmas 9, 052501 (2022)], which compared two NSTX SOL simulations in simple helical geometry, one with neutrals and one without. The former included electron-impact ionization, charge exchange, and wall recycling. Here, the case with neutrals is compared…