Effect of edge turbulent transport on scrape-off layer width on HL-2A tokamak

被引：13

作者：

Wu, Ting ^{[1
]}

Xu, Min ^{[1
]}

Nie, Lin ^{[1
]}

Yu, Yi ^{[1
,2
]}

Xu, Jianqiang ^{[1
]}

Long, Ting ^{[1
]}

He, Yu ^{[3
]}

Cheng, Jun ^{[3
]}

Yan, Longwen ^{[1
]}

Huang, Zhihui ^{[1
]}

Ke, Rui ^{[1
]}

Shi, Peng ^{[1
]}

Wang, Shuo ^{[1
]}

Liu, Bing ^{[3
]}

机构：

[1] Southwestern Inst Phys, Chengdu 610041, Peoples R China

[2] Univ Sci & Technol China, Sch Phys, Hefei 230026, Peoples R China

[3] Southwest Jiaotong Univ, Inst Fus Sci, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China

来源：

PLASMA SCIENCE & TECHNOLOGY | 2021年 / 23卷 / 02期

基金：

中国国家自然科学基金;

关键词：

SOL width; edge turbulent transport; E x B shear; turbulence spreading; PLASMAS; SHEAR; MODEL;

D O I：

10.1088/2058-6272/abd6b7

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Effect of edge turbulent transport on scrape-off layer (SOL) width has been investigated in Ohmically heated L-mode plasma under limiter configurations on HL-2A tokamak. It has been found that SOL width is doubled when plasma current decreases about 20%. With larger plasma current, E x B shear is stronger and has greater suppression effect on edge turbulent transport. SOL width is larger when power of relative density fluctuation level in the edge region is larger. It is concluded that edge turbulent transport plays a significant role on SOL width. These experimental findings may provide a better understanding and controlling of power exhaust for present and future fusion devices.

引用

页数：6

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