A new model of the L-H transition and H-mode power threshold
文献类型：期刊论文
| 作者 | Wu, Xingquan1 ; Xu, Guosheng1; Wan, Baonian1; Rasmussen, Jens Juul2; Naulin, Volker2; Nielsen, Anders Henry2; Chen, Liang1; Chen, Ran1; Yan, Ning1; Shao, Linming1
|
| 刊名 | PLASMA SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 20期号:9页码:12 |
| ISSN号 | 1009-0630 |
| 关键词 | L-H transition power threshold E x B flow shear turbulence suppression edge instability |
| DOI | 10.1088/2058-6272/aabb9e |
| 通讯作者 | Wu, Xingquan(xqwu@ipp.ac.cn) ; Xu, Guosheng(gsxu@ipp.ac.cn) |
| 英文摘要 | In order to understand the mechanism of the confinement bifurcation and H-mode power threshold in magnetically confined plasma, a new dynamical model of the L-H transition based on edge instability phase transition (EIPT) has been developed. With the typical plasma parameters of the EAST tokamak, the self-consistent turbulence growth rate is analyzed using the simplest case of pressure-driven ballooning-type instability, which indicates that the L-H transition can be caused by the stabilization of the edge instability through EIPT. The weak E x B flow shear in L-mode is able to increase the ion inertia of the electrostatic motion by increasing the radial wave number of the tilted turbulence structures, which play an important role for accelerating the trigger process of EIPT rather than directly to suppress the turbulent transport. With the acceleration mechanism of E x B flow shear, fast L-H and H-L transitions are demonstrated under the control of the input heating power. Due to the simplified scrape-off-layer boundary condition applied, the ratio between the heating powers at the H-L and L-H transition respectively differs from the ratio by Nusselt number. The results of the modeling reveal a scaling of the power threshold of the L-H transition, PL-H proportional to n(0.76)B(0.8) for deuterium plasma. It is found finite Larmor radius induces an isotope effect of the H-mode power threshold. |
| WOS关键词 | TOKAMAK EDGE TURBULENCE ; RADIAL ELECTRIC-FIELD ; SCRAPE-OFF-LAYER ; DIII-D TOKAMAK ; HIGH CONFINEMENT ; SHEAR-FLOW ; DENSITY-FLUCTUATIONS ; ANOMALOUS TRANSPORT ; DIVERTOR GEOMETRY ; FUSION PLASMAS |
| 资助项目 | National Natural Science Foundation of China[11575235] ; National Natural Science Foundation of China[11422546] ; China Postdoctoral Science Foundation[2016M602043] ; National Magnetic Confinement Fusion Science Program of China[2015GB101002] ; CAS[QYZDB-SSW-SLH001] ; K C Wong Education Foundation |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| WOS记录号 | WOS:000445360800003 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; National Magnetic Confinement Fusion Science Program of China ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation ; K C Wong Education Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/38828]  |
| 专题 | 合肥物质科学研究院_中科院等离子体物理研究所 |
| 通讯作者 | Wu, Xingquan; Xu, Guosheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark |
| 推荐引用方式 GB/T 7714 | Wu, Xingquan,Xu, Guosheng,Wan, Baonian,et al. A new model of the L-H transition and H-mode power threshold[J]. PLASMA SCIENCE & TECHNOLOGY,2018,20(9):12. |
| APA | Wu, Xingquan.,Xu, Guosheng.,Wan, Baonian.,Rasmussen, Jens Juul.,Naulin, Volker.,...&Shao, Linming.(2018).A new model of the L-H transition and H-mode power threshold.PLASMA SCIENCE & TECHNOLOGY,20(9),12. |
| MLA | Wu, Xingquan,et al."A new model of the L-H transition and H-mode power threshold".PLASMA SCIENCE & TECHNOLOGY 20.9(2018):12. |
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。