OEDGE modeling of plasma contamination efficiency of Ar puffing from different divertor locations in EAST

Pengfei ZHANG (张鹏飞); Ling ZHANG (张凌); Zhenwei WU (吴振伟); Zong XU (许棕); Wei GAO (高伟); Liang WANG (王亮); Qingquan YANG (杨清泉); Jichan XU (许吉禅); Jianbin LIU (刘建斌); Hao QU (屈浩); Yong LIU (刘永); Juan HUANG (黄娟); Chengrui WU (吴成瑞); Yumei HOU (侯玉梅); Zhao JIN (金钊); J D ELDER; Houyang GUO (郭后扬)

doi:10.1088/2058-6272/aaa7e8

Plasma Science and Technology > 2018 > 20(4): 45104-045104. > DOI: 10.1088/2058-6272/aaa7e8

Pengfei ZHANG (张鹏飞), Ling ZHANG (张凌), Zhenwei WU (吴振伟), Zong XU (许棕), Wei GAO (高伟), Liang WANG (王亮), Qingquan YANG (杨清泉), Jichan XU (许吉禅), Jianbin LIU (刘建斌), Hao QU (屈浩), Yong LIU (刘永), Juan HUANG (黄娟), Chengrui WU (吴成瑞), Yumei HOU (侯玉梅), Zhao JIN (金钊), J D ELDER, Houyang GUO (郭后扬). OEDGE modeling of plasma contamination efficiency of Ar puffing from different divertor locations in EAST[J]. Plasma Science and Technology, 2018, 20(4): 45104-045104. DOI: 10.1088/2058-6272/aaa7e8

Citation:

PDF (1934 KB)

OEDGE modeling of plasma contamination efficiency of Ar puffing from different divertor locations in EAST

1 Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China 2 University of Science and Technology of China, Hefei 230026, People’s Republic of China 3 University of Toronto Institute for Aerospace Studies, Toronto M3H5T6, Canada 4 General Atomics, PO Box 85608, San Diego, CA 92186, United States of America

Funds: This work was supported by the National Magnetic Confinement Fusion Science Program of China under Contract Nos. 2013GB107003, 2014GB124006, 2015GB101000, National Natural Science Foundation of China under Grant Nos. 11275231, 11422546, 11575236, 11575244 and 11405213, Scientific Research Grant of Hefei Science Center of CAS under contract 2015SRG-HSC001 and 2015SRG?HSC008, Magnetic Confinement Innovation Team Plan of Chinese Academy of Sciences, as well as the Thousand Talent Plan of China.

More Information

Received Date: August 15, 2017

Graphical Abstract

Abstract

Abstract

Modeling with OEDGE was carried out to assess the initial and long-term plasma contamination efficiency of Ar puffing from different divertor locations, i.e. the inner divertor, the outer divertor and the dome, in the EAST superconducting tokamak for typical ohmic plasma conditions. It was found that the initial Ar contamination efficiency is dependent on the local plasma conditions at the different gas puff locations. However, it quickly approaches a similar steady state value for Ar recycling efficiency >0.9. OEDGE modeling shows that the final equilibrium Ar contamination efficiency is significantly lower for the more closed lower divertor than that for the upper divertor.
- divertor,
- Ar puffing,
- impurity transport,
- OEDGE,
- EAST

FullText(HTML)

References (20)

References

[1]	ITER Physics Expert Group et al 1999 Nucl. Fusion 39 2391
[2]	Maddison G P et al 2003 Nucl. Fusion 43 49
[3]	Jackson G L et al 1999 J. Nucl. Mater. 266–269 380
[4]	Gruber O et al 1995 Phys. Rev. Lett. 74 4217
[5]	Chung T et al 2003 J. Nucl. Mater. 313–316 990
[6]	Wan B N et al 2015 Nucl. Fusion 55 104015
[7]	Li J et al 2013 Nat. Phys. 9 817
[8]	Stangeby P C et al 2003 J. Nucl. Mater. 313–316 883
[9]	Wu Z W et al 2011 J. Nucl. Mater. 415 S345
[10]	Wang D S et al 2011 Phys. Plasmas 18 032505
[11]	Xu J C et al 2016 Rev. Sci. Instrum. 87 083504
[12]	Xu Z et al 2016 Rev. Sci. Instrum. 87 11D429
[13]	Stangeby P C et al 1997 J. Nucl. Mater. 241–243 358
[14]	Fundamenski W, Stangeby P C and Elder J D 1999 J. Nucl. Mater. 266–269 1045
[15]	Reiter D 1992 J. Nucl. Mater. 196–198 80
[16]	Stangeby P C and Elder J D 1995 Nucl. Fusion 35 1391
[17]	Lao L L et al 1990 Nucl. Fusion 30 1035
[18]	Lisgo S 2013 Grid Generation with GRID. (Hefei: Institute of Plasma Physics, Chinese Academy of Sciences)
[19]	Summers H P 2004 The ADAS User Manual, Version 2.6 (http://adas.ac.uk)
[20]	Zhang P F et al 2016 Spectrosc. Spect. Anal. 36 2134 (in Chinese)

[1]	Yuqing YANG (杨宇晴), Xinjun ZHANG (张新军), Yanping ZHAO (赵燕平), Chengming QIN (秦成明), Yan CHENG (程艳), Yuzhou MAO (毛玉周), Hua YANG (杨桦), Jianhua WANG (王健华), Shuai YUAN (袁帅), Lei WANG (王磊), Songqing JU (琚松青), Gen CHEN (陈根), Xu DENG, (邓旭), Kai ZHANG (张开), Baonian WAN (万宝年), Jiangang LI (李建刚), Yuntao SONG (宋云涛), Xianzu GONG (龚先祖), Jinping QIAN (钱金平), Tao ZHANG (张涛). Recent ICRF coupling experiments on EAST[J]. Plasma Science and Technology, 2018, 20(4): 45102-045102. DOI: 10.1088/2058-6272/aaa599
[2]	Zhijun WANG (王智君), Xiang GAO (高翔), Tingfeng MING (明廷凤), Yumin WANG (王嵎民), Fan ZHOU (周凡), Feifei LONG (龙飞飞), Qing ZHUANG (庄清), EAST Team. Two-dimensional vacuum ultraviolet images in different MHD events on the EAST tokamak[J]. Plasma Science and Technology, 2018, 20(2): 25103-025103. DOI: 10.1088/2058-6272/aa9477
[3]	Heng LAN (兰恒), Guosheng XU (徐国盛), Kevin TRITZ, Ning YAN (颜宁), Tonghui SHI (石同辉), Yongliang LI (李永亮), Tengfei WANG (王腾飞), Liang WANG (王亮), Jingbo CHEN (陈竞博), Yanmin DUAN (段艳敏), Yi YUAN (原毅), Youwen SUN (孙有文), Shuai GU (顾帅), Qing ZANG (臧庆), Ran CHEN (陈冉), Liang CHEN (陈良), Xingwei ZHENG (郑星炜), Shuliang CHEN (陈树亮), HuanLIU (刘欢), YangYE (叶扬), Huiqian WANG (汪惠乾), Baonian WAN (万宝年), the EAST Team. Analysis of electron temperature, impurity transport and MHD activity with multi-energy soft x-ray diagnostic in EAST tokamak[J]. Plasma Science and Technology, 2017, 19(12): 125101. DOI: 10.1088/2058-6272/aa8cbf
[4]	CHEN Gen (陈根), QIN Chengming (秦成明), MAO Yuzhou (毛玉周), ZHAO Yanping (赵燕平), YUAN Shuai (袁帅), ZHANG Xinjun (张新军). Power Compensation for ICRF Heating in EAST[J]. Plasma Science and Technology, 2016, 18(8): 870-874. DOI: 10.1088/1009-0630/18/8/14
[5]	LI Changzheng(李长征), HU Jiansheng(胡建生), CHEN Yue(陈跃), LIANG Yunfeng(梁云峰), LI Jiangang(李建刚), LI Jiahong(李加宏), WU Jinhua(吴金华), HAN Xiang(韩翔). First Results of Pellet Injection Experiments on EAST[J]. Plasma Science and Technology, 2014, 16(10): 913-918. DOI: 10.1088/1009-0630/16/10/03
[6]	WANG Fuqiong(王福琼), CHEN Yiping(陈一平), HU Liqun(胡立群). DIVIMP Modeling of Impurity Transport in EAST[J]. Plasma Science and Technology, 2014, 16(7): 642-649. DOI: 10.1088/1009-0630/16/7/03
[7]	JI Xiang (戢翔), SONG Yuntao (宋云涛), SHEN Guang (沈光), CAO Lei (曹磊), ZHOU Zibo (周自波), XU Tiejun (许铁军), LIU Xufeng (刘旭峰), XU Weiwei (徐薇薇), PENG Xuebing (彭学兵), WANG Shengming (王声铭), et al. Optimization and Update of EAST In-Vessel Components in 2011[J]. Plasma Science and Technology, 2013, 15(3): 277-281. DOI: 10.1088/1009-0630/15/3/17
[8]	ZUO Guizhong, HU Jiansheng, LI Jiangang, LUO Nanchang, HU Liqun, FU Jia, CHEN Kaiyun, TI Ang, ZHANG Lili. Primary Results of Lithium Coating for the Improvement of Plasma Performance in EAST[J]. Plasma Science and Technology, 2010, 12(6): 646-650.
[9]	YANG Fei (杨飞), XIAO Bingjia (肖炳甲). Web-based Logbook System for EAST Experiments[J]. Plasma Science and Technology, 2010, 12(5): 632-635.
[10]	WANG Junyi (王君一), CHEN Yiping(陈一平). Study of Carbon Impurity Transport at SOL in EAST[J]. Plasma Science and Technology, 2010, 12(5): 535-539.