Effect of anisotropic thermal transport on the resistive plasma response to resonant magnetic perturbation field
Abstract
Plasma response to the resonant magnetic perturbation (RMP) field is numerically investigated by an extended toroidal fluid model, which includes anisotropic thermal transport physics parallel and perpendicular to the total magnetic field. The thermal transport is found to be effective in eliminating the toroidal average curvature induced plasma screening (the so called Glasser-Green-Johnson, GGJ screening) at slow toroidal flow regime, whilst having minor effect on modifying the conventional plasma screening regimes at faster flow. Furthermore, this physics effect of interaction between thermal transport and GGJ screening is attributed to the modification of the radial structure of the shielding current, resulted from the plasma response to the applied field. The modification of the plasma response (shielding current, response field, plasma displacement and the perturbed velocity) also has direct consequence on the toroidal torques produced by RMP. These modelling results show that thermal transport reduces the resonant electromagnetic torque as well as the torque associated with the Reynolds stress, but enhances the neoclassical toroidal viscous torque at slow plasma flow.
- Authors:
-
- Southwestern Inst. of Physics, Chengdu (China); Tsinghua Univ., Beijing (China). Dept. of Engineering Physics
- Southwestern Inst. of Physics, Chengdu (China); General Atomics, San Diego, CA (United States)
- Tsinghua Univ., Beijing (China). Dept. of Engineering Physics
- Publication Date:
- Research Org.:
- General Atomics, San Diego, CA (United States); Southwestern Institute of Physics, Chengdu (China); Tsinghua Univ., Beijing (China)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1399659
- Report Number(s):
- DOE-GA-54309
Journal ID: ISSN 1070-664X; TRN: US1703207
- Grant/Contract Number:
- FG02-95ER54309; FC02-04ER54698; 11605046; 11505050; 2015GB105004; 2015GB104004
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 24; Journal Issue: 10; 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; anisotropic thermal transport; resistive plasma response; resonant magnetic perturbation(RMP); MARS-F
Citation Formats
Bai, Xue, Liu, Yueqiang, and Gao, Zhe. Effect of anisotropic thermal transport on the resistive plasma response to resonant magnetic perturbation field. United States: N. p., 2017.
Web. doi:10.1063/1.5003664.
Bai, Xue, Liu, Yueqiang, & Gao, Zhe. Effect of anisotropic thermal transport on the resistive plasma response to resonant magnetic perturbation field. United States. https://doi.org/10.1063/1.5003664
Bai, Xue, Liu, Yueqiang, and Gao, Zhe. Thu .
"Effect of anisotropic thermal transport on the resistive plasma response to resonant magnetic perturbation field". United States. https://doi.org/10.1063/1.5003664. https://www.osti.gov/servlets/purl/1399659.
@article{osti_1399659,
title = {Effect of anisotropic thermal transport on the resistive plasma response to resonant magnetic perturbation field},
author = {Bai, Xue and Liu, Yueqiang and Gao, Zhe},
abstractNote = {Plasma response to the resonant magnetic perturbation (RMP) field is numerically investigated by an extended toroidal fluid model, which includes anisotropic thermal transport physics parallel and perpendicular to the total magnetic field. The thermal transport is found to be effective in eliminating the toroidal average curvature induced plasma screening (the so called Glasser-Green-Johnson, GGJ screening) at slow toroidal flow regime, whilst having minor effect on modifying the conventional plasma screening regimes at faster flow. Furthermore, this physics effect of interaction between thermal transport and GGJ screening is attributed to the modification of the radial structure of the shielding current, resulted from the plasma response to the applied field. The modification of the plasma response (shielding current, response field, plasma displacement and the perturbed velocity) also has direct consequence on the toroidal torques produced by RMP. These modelling results show that thermal transport reduces the resonant electromagnetic torque as well as the torque associated with the Reynolds stress, but enhances the neoclassical toroidal viscous torque at slow plasma flow.},
doi = {10.1063/1.5003664},
journal = {Physics of Plasmas},
number = 10,
volume = 24,
place = {United States},
year = {2017},
month = {9}
}
Web of Science
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Works referencing / citing this record:
Destabilization of resistive plasma resistive wall mode by anisotropic thermal transport
journal, September 2018
- Bai, Xue; Liu, Yueqiang; Gao, Zhe
- Physics of Plasmas, Vol. 25, Issue 9