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Understanding L-H transition in tokamak fusion plasmas

文献类型：期刊论文

作者Xu, Guosheng; Wu, Xingquan
刊名PLASMA SCIENCE & TECHNOLOGY
出版日期2017-03-01
卷号19期号:3页码:1-11
关键词L-h Transition Exb Flow Shear Turbulence Suppression Zonal Flows Reynolds Stress
DOI10.1088/2058-6272/19/3/033001
文献子类Review
英文摘要This paper reviews the current state of understanding of the L-H transition phenomenon in tokamak plasmas with a focus on two central issues: (a) the mechanism for turbulence quick suppression at the L-H transition; (b) the mechanism for subsequent generation of sheared flow. We briefly review recent advances in the understanding of the fast suppression of edge turbulence across the L-H transition. We uncover a comprehensive physical picture of the L-H transition by piecing together a number of recent experimental observations and insights obtained from 1D and 2D simulation models. Different roles played by diamagnetic mean flow, neoclassical-driven mean flow, turbulence-driven mean flow, and turbulence-driven zonal flows are discussed and clarified. It is found that the L-H transition occurs spontaneously mediated by a shift in the radial wavenumber spectrum of edge turbulence, which provides a critical evidence for the theory of turbulence quench by the flow shear. Remaining questions and some key directions for future investigations are proposed.
WOS关键词RADIAL ELECTRIC-FIELD ; FLUID MODEL TURBULENCE ; HIGH CONFINEMENT ; EDGE TURBULENCE ; SHEAR-FLOW ; DIII-D ; TRANSPORT ; SIMULATION ; ROTATION ; PHYSICS
WOS研究方向Physics
语种英语
WOS记录号WOS:000398146100002
资助机构National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Magnetic Confinement Fusion Science Program of China(2015GB101000 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; National Natural Science Foundation of China(11575235 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 2013GB106000 ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 11422546) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000) ; 2013GB107000)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31791]  
专题合肥物质科学研究院_中科院等离子体物理研究所
作者单位Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Guosheng,Wu, Xingquan. Understanding L-H transition in tokamak fusion plasmas[J]. PLASMA SCIENCE & TECHNOLOGY,2017,19(3):1-11.
APA Xu, Guosheng,&Wu, Xingquan.(2017).Understanding L-H transition in tokamak fusion plasmas.PLASMA SCIENCE & TECHNOLOGY,19(3),1-11.
MLA Xu, Guosheng,et al."Understanding L-H transition in tokamak fusion plasmas".PLASMA SCIENCE & TECHNOLOGY 19.3(2017):1-11.

入库方式： OAI收割

来源：合肥物质科学研究院

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