Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Princeton Univ., Princeton, NJ (United States). Dept. of Astrophysical Sciences
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Curvature-driven turbulence in a helical open-field-line plasma is investigated using electrostatic five-dimensional gyrokinetic continuum simulations in an all-bad-curvature helical-slab geometry. Parameters for a National Spherical Torus Experiment scrape-off-layer plasma are used in the model. Here, the formation and convective radial transport of plasma blobs is observed, and it is shown that the radial particle-transport levels are several times higher than diffusive Bohm-transport estimates. By reducing the strength of the poloidal magnetic field, the profile of the heat flux to the divertor plate is observed to broaden.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC52-07NA27344
- OSTI ID:
- 1497984
- Report Number(s):
- LLNL-JRNL-759681; 947057
- Journal Information:
- Physics of Plasmas, Vol. 26, Issue 1; ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 15 works
Citation information provided by
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Web of Science
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