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Title: Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak

Abstract

The first gyrokinetic simulations of plasma turbulence in the Texas Helimak device, a simple magnetized torus, are presented. Here, the device has features similar to the scrape-off layer region of tokamaks, such as bad-curvature-driven instabilities and sheath boundary conditions on the end plates, which are included in these simulations. Comparisons between simulations and measurements from the experiment show not only similarities, including equilibrium profiles and fluctuation amplitudes that approach experimental values, but also some important quantitative differences. Both experimental and simulation results exhibit turbulence statistics that are characteristic of blob transport.

Authors:
 [1]; ORCiD logo [2];  [1];  [3]; ORCiD logo [3]; ORCiD logo [3];  [1]
  1. Univ. of Texas at Austin, Austin, TX (United States)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Princeton Univ., Princeton, NJ (United States)
  3. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1510307
Alternate Identifier(s):
OSTI ID: 1506556
Grant/Contract Number:  
ACI-1548562; AC02-09CH11466; FG02-04ER-54742; SC0014664
Resource Type:
Accepted Manuscript
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 26; Journal Issue: 4; 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

Bernard, T. N., Shi, E. L., Gentle, K. W., Hakim, A., Hammett, G. W., Stoltzfus-Dueck, T., and Taylor, E. I. Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak. United States: N. p., 2019. Web. doi:10.1063/1.5085457.
Bernard, T. N., Shi, E. L., Gentle, K. W., Hakim, A., Hammett, G. W., Stoltzfus-Dueck, T., & Taylor, E. I. Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak. United States. doi:10.1063/1.5085457.
Bernard, T. N., Shi, E. L., Gentle, K. W., Hakim, A., Hammett, G. W., Stoltzfus-Dueck, T., and Taylor, E. I. Thu . "Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak". United States. doi:10.1063/1.5085457.
@article{osti_1510307,
title = {Gyrokinetic continuum simulations of plasma turbulence in the Texas Helimak},
author = {Bernard, T. N. and Shi, E. L. and Gentle, K. W. and Hakim, A. and Hammett, G. W. and Stoltzfus-Dueck, T. and Taylor, E. I.},
abstractNote = {The first gyrokinetic simulations of plasma turbulence in the Texas Helimak device, a simple magnetized torus, are presented. Here, the device has features similar to the scrape-off layer region of tokamaks, such as bad-curvature-driven instabilities and sheath boundary conditions on the end plates, which are included in these simulations. Comparisons between simulations and measurements from the experiment show not only similarities, including equilibrium profiles and fluctuation amplitudes that approach experimental values, but also some important quantitative differences. Both experimental and simulation results exhibit turbulence statistics that are characteristic of blob transport.},
doi = {10.1063/1.5085457},
journal = {Physics of Plasmas},
number = 4,
volume = 26,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 11, 2020
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