中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 合肥物质科学研究院
  3. 中国科学院合肥物质科学研究院
  4. 中科院等离子体物理研究所
Numerical modeling of the transition from low to high confinement in magnetically confined plasma

文献类型：期刊论文

作者Rasmussen, J. Juul1; Nielsen, A. H.1; Madsen, J.1; Naulin, V.1; Xu, G. S.2
刊名PLASMA PHYSICS AND CONTROLLED FUSION
出版日期2016
卷号58期号:1页码:1-10
关键词L-h Transition Fluid Simulations Braginskii Equations Turbulence And Flows
DOI10.1088/0741-3335/58/1/014031
文献子类Article
英文摘要The transition dynamics from low (L) to high (H) mode confinement in magnetically confined plasmas is investigated using a four-field drift fluid model-HESEL (Hot Edge-Sol-Electrostatic). The model includes profile evolution and is solved in a 2D domain at the out-board mid-plane of a tokamak including both open and closed field lines. The results reveal different types of L-H-like transitions in response to ramping up the input power by increasing the ion temperature in the edge region. For a fast rising input power we obtain an abrupt transition, and for a slow rising power we obtain a L-I-H transition with an intermediate I-phase displaying limit-cycle oscillations (LCO). The model recovers the power threshold for the L-H transition, the scaling of the threshold with the density and with the loss-rate in the SOL, indicating a decrease in power threshold when switching from single to double null configuration. The results hold promises for developing full predictive modeling of the L-H transition, which is an essential step in understanding and optimizing fusion devices.
WOS关键词L-H TRANSITION ; DRIFT-WAVE ; TURBULENCE ; TOKAMAK ; TRANSPORT ; SIMULATIONS ; PEDESTAL ; GEOMETRY ; MAST
WOS研究方向Physics
语种英语
WOS记录号WOS:000368471900032
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(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 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(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; National Natural Science Foundation of China(11422546 ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; Sino-Danish Center for Education and Research (SDC) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31595]  
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1.Tech Univ Denmark, Dept Phys, PPFE, Kgs Lyngby, Denmark
2.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China
推荐引用方式
GB/T 7714		 Rasmussen, J. Juul,Nielsen, A. H.,Madsen, J.,et al. Numerical modeling of the transition from low to high confinement in magnetically confined plasma[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2016,58(1):1-10.
APA Rasmussen, J. Juul,Nielsen, A. H.,Madsen, J.,Naulin, V.,&Xu, G. S..(2016).Numerical modeling of the transition from low to high confinement in magnetically confined plasma.PLASMA PHYSICS AND CONTROLLED FUSION,58(1),1-10.
MLA Rasmussen, J. Juul,et al."Numerical modeling of the transition from low to high confinement in magnetically confined plasma".PLASMA PHYSICS AND CONTROLLED FUSION 58.1(2016):1-10.

入库方式： OAI收割

来源：合肥物质科学研究院

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。