Abstract
The effect of varying magnetic shear on scrape-off layer turbulence and profiles is studied via electromagnetic gyrokinetic simulations of a helical scrape-off layer model. We develop a model helical geometry with magnetic shear and a corresponding field-aligned coordinate system, which is used for simulations with the Gkeyll code. We find that perpendicular transport is reduced in cases with stronger shear, resulting in higher peak particle and heat fluxes to the endplates. Electromagnetic effects slightly increase transport in strong shear cases.
| Original language | English (US) |
|---|---|
| Article number | 085006 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 64 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2022 |
All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering
- Condensed Matter Physics
Keywords
- Gkeyll
- gyrokinetic simulation
- magnetic confinement
- magnetic shear
- scrape-off layer turbulence