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Title: Magnetic curvature effects on plasma interchange turbulence

Abstract

The magnetic curvature effects on plasma interchange turbulence and transport in the Z-pinch and dipole-like systems are explored with two-fluid global simulations. By comparing the transport levels in the systems with a different magnetic curvature, we show that the interchange-mode driven transport strongly depends on the magnetic geometry. For the system with large magnetic curvature, the pressure and density profiles are strongly peaked in a marginally stable state and the nonlinear evolution of interchange modes produces the global convective cells in the azimuthal direction, which lead to the low level of turbulent convective transport.

Authors:
; ; ; ; ; ;  [1]
  1. State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China)
Publication Date:
OSTI Identifier:
22598984
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 6; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPARATIVE EVALUATIONS; DENSITY; DIPOLES; FLUIDS; GEOMETRY; NONLINEAR PROBLEMS; PEAKS; PLASMA; SIMULATION; TRANSPORT THEORY; TURBULENCE

Citation Formats

Li, B., E-mail: bli@pku.edu.cn, Liao, X., Sun, C. K., Ou, W., Liu, D., Gui, G., and Wang, X. G.. Magnetic curvature effects on plasma interchange turbulence. United States: N. p., 2016. Web. doi:10.1063/1.4953610.
Li, B., E-mail: bli@pku.edu.cn, Liao, X., Sun, C. K., Ou, W., Liu, D., Gui, G., & Wang, X. G.. Magnetic curvature effects on plasma interchange turbulence. United States. doi:10.1063/1.4953610.
Li, B., E-mail: bli@pku.edu.cn, Liao, X., Sun, C. K., Ou, W., Liu, D., Gui, G., and Wang, X. G.. Wed . "Magnetic curvature effects on plasma interchange turbulence". United States. doi:10.1063/1.4953610.
@article{osti_22598984,
title = {Magnetic curvature effects on plasma interchange turbulence},
author = {Li, B., E-mail: bli@pku.edu.cn and Liao, X. and Sun, C. K. and Ou, W. and Liu, D. and Gui, G. and Wang, X. G.},
abstractNote = {The magnetic curvature effects on plasma interchange turbulence and transport in the Z-pinch and dipole-like systems are explored with two-fluid global simulations. By comparing the transport levels in the systems with a different magnetic curvature, we show that the interchange-mode driven transport strongly depends on the magnetic geometry. For the system with large magnetic curvature, the pressure and density profiles are strongly peaked in a marginally stable state and the nonlinear evolution of interchange modes produces the global convective cells in the azimuthal direction, which lead to the low level of turbulent convective transport.},
doi = {10.1063/1.4953610},
journal = {Physics of Plasmas},
number = 6,
volume = 23,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}