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Numerical simulations of blobs with ion dynamics
Nielsen, A. H.1; Rasmussen, J. Juul1; Madsen, J.1; Xu, G. S.2; Naulin, V.1; Olsen, J. M. B.1; Loiten, M.1; Hansen, S. K.1; Yan, N.2; Tophoj, L.1
刊名PLASMA PHYSICS AND CONTROLLED FUSION
2017-02-01
卷号59期号:2页码:1-12
关键词Blob Dynamics Scrape-off Layer Transport Turbulence And Flows Simulations
DOI10.1088/1361-6587/59/2/025012
文献子类Article
英文摘要The transport of particles and energy into the scrape-off layer (SOL) region at the outboard midplane of medium-sized tokamaks, operating in low confinement mode, is investigated by applying the first-principle HESEL (hot edge-sol-electrostatic) model. HESEL is a four-field drift-fluid model including finite electron and ion temperature effects, drift wave dynamics on closed field lines, and sheath dynamics on open field lines. Particles and energy are mainly transported by intermittent blobs. Therefore, blobs have a significant influence on the corresponding profiles. The formation of a 'shoulder' in the SOL density profile can be obtained by increasing the collisionality or connection length, thus decreasing the efficiency of the SOL's ability to remove plasma. As the ion pressure has a larger perpendicular but smaller parallel dissipation rate compared to the electron pressure, ion energy is transported far into the SOL. This implies that the ion temperature in the SOL exceeds the electron temperature by. a factor of. 2-4 and. significantly broadens the power deposition profile.
WOS关键词SCRAPE-OFF LAYER ; TURBULENT TRANSPORT ; PLASMA TURBULENCE ; TCV SOL ; TOKAMAK
WOS研究方向Physics
语种英语
WOS记录号WOS:000391994900002
资助机构Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; 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) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; Euratom research and training programme(20142018 ; 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) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 633053) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235) ; 11575235)
内容类型期刊论文
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31728]  
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, DK-2800 Lyngby, Denmark
2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Nielsen, A. H.,Rasmussen, J. Juul,Madsen, J.,et al. Numerical simulations of blobs with ion dynamics[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2017,59(2):1-12.
APA Nielsen, A. H..,Rasmussen, J. Juul.,Madsen, J..,Xu, G. S..,Naulin, V..,...&Wan, B. N..(2017).Numerical simulations of blobs with ion dynamics.PLASMA PHYSICS AND CONTROLLED FUSION,59(2),1-12.
MLA Nielsen, A. H.,et al."Numerical simulations of blobs with ion dynamics".PLASMA PHYSICS AND CONTROLLED FUSION 59.2(2017):1-12.
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