Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma
Abstract
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.
- Authors:
-
[1];
[2];
[2];
- 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)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1497984
- Report Number(s):
- LLNL-JRNL-759681
Journal ID: ISSN 1070-664X; 947057
- Grant/Contract Number:
- AC52-07NA27344
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 26; Journal Issue: 1; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Shi, E. L., Hammett, G. W., Stoltzfus-Dueck, T., and Hakim, A. Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma. United States: N. p., 2019.
Web. doi:10.1063/1.5074179.
Shi, E. L., Hammett, G. W., Stoltzfus-Dueck, T., & Hakim, A. Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma. United States. https://doi.org/10.1063/1.5074179
Shi, E. L., Hammett, G. W., Stoltzfus-Dueck, T., and Hakim, A. Mon .
"Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma". United States. https://doi.org/10.1063/1.5074179. https://www.osti.gov/servlets/purl/1497984.
@article{osti_1497984,
title = {Full-f gyrokinetic simulation of turbulence in a helical open-field-line plasma},
author = {Shi, E. L. and Hammett, G. W. and Stoltzfus-Dueck, T. and Hakim, A.},
abstractNote = {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.},
doi = {10.1063/1.5074179},
journal = {Physics of Plasmas},
number = 1,
volume = 26,
place = {United States},
year = {Mon Jan 28 00:00:00 EST 2019},
month = {Mon Jan 28 00:00:00 EST 2019}
}
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Works referencing / citing this record:
Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak
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- Bernard, T. N.; Shi, E. L.; Gentle, K. W.
- Physics of Plasmas, Vol. 26, Issue 4
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- Bernard, Tess N.; Shi, Eric L.; Gentle, Kenneth
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text, January 2019
- Mandell, N. R.; Hakim, A.; Hammett, G. W.
- arXiv