2018/03/27 by Jeffrey B. Parker, Lynda L. LoDestro, Daniel Told +5 · 1 citation
Physics and Astronomy · #physics.plasm-ph
paper · pdf · doi:10.1088/1741-4326/aab5c8
published as Nucl. Fusion 58 054004 (2018) · 7 pages, 3 figures
arxiv created 2018/03/27 · arxiv updated 2018/03/28
The vast separation dividing the characteristic times of energy confinement and turbulence in the core of toroidal plasmas makes first-principles prediction on long timescales extremely challenging. Here we report the demonstration of a multiple-timescale method that enables coupling global gyrokinetic simulations with a transport solver to calculate the evolution of the self-consistent temperature profile. This method, which exhibits resiliency to the intrinsic fluctuations arising in turbulence simulations, holds potential for integrating nonlocal gyrokinetic turbulence simulations into predictive, whole-device models.