Results 31 to 40 of about 131,113 (167)

Thermal helium beam measurements of plasma edge turbulence in positive and negative triangularity plasmas on TCV

Nuclear Fusion
Edge plasma behavior plays a central role in determining the overall confinement and operational limits of tokamak plasmas. In particular, turbulence at the plasma boundary strongly influences particle and heat transport and remains a key target for ...
M. Ugoletti, M. Agostini, M. La Matina, M. Bonisolli, S. Coda, O. Fevrier, O. Krutkin, B. Labit, S. Rienäcker, O. Sauter, Y. Wang, C. Theiler, the TCV team, the WPTE team   +13 more
doaj   +1 more source

Effect of heating scheme on SOL width in DIII-D and EAST

Nuclear Materials and Energy, 2017
Joint DIII-D/EAST experiments in the radio-frequency (RF) heated H-mode scheme with comparison to that of neutral beam (NB) heated H-mode scheme were carried out on DIII-D and EAST under similar conditions to examine the effect of heating scheme on ...
L. Wang, M.A. Makowski, H.Y. Guo, A.W. Leonard, G.S. Xu, X.Z. Gong, A.M. Garofalo, G.Z. Deng, T.W. Petrie, D. Thomas, G. Jackson, G. Kramer, R. Maingi, J.B. Liu, W. Feng, H. Wang, B. Zhang, S. Ding, C.K. Pan, Y.J. Hu, J.P. Qian, J. Li, B.N. Wan   +22 more
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Experimental Study of Plasma Actuator Effects on Flow Field Separation Bubble around Blunt Flat Plate

Journal of Applied Fluid Mechanics, 2016
In this paper, the air flow around a blunt flat plate with a rounded leading edge has been experimentally examined with and without the presence of a plasma actuator. Tests have been conducted with Reynolds numbers ranging from 104 to 105.
Saeed Kavousfar, E. Esmaeilzadeh, hossein mahdavy moghaddam, S. G. Pouryoussefi, M. Mirzaei   +4 more
doaj  

Compatibility of pronounced detachment with improved confinement on HL-2A tokamak

Nuclear Fusion
This paper investigates the compatibility of pronounced detachment with improved confinement based on the NBI-heated HL-2A L-mode plasma with low-density.
Ting Wu, Min Xu, Zhuo Wang, Lin Nie, Zhanhui Wang, Jinming Gao, Yihang Chen, Yiren Zhu, Yi Zhang, Liang Liu, Dong Li, Kai Zhang, Rui Ke, Xiaoxue He, Zengceng Yang, Xin Yu, Na Wu, Zhihui Huang, Kaiyang Yi, Weice Wang, Longwen Yan, Yonggao Li, Ting Long, Renxu Wang, Wenjing Tian, Zhe Wang, Laizhong Cai, Yi Yu   +27 more
doaj   +1 more source

Viscosity in the edge of tokamak plasmas [PDF]

, 1993
A fluid representation of viscosity has been incorporated into a set of fluid equations that are maximally ordered in the ``short-radial-gradient-scale-length`` (srgsl) ordering that is appropriate for the edge of tokamak plasmas. The srgsl ordering raises viscous drifts and other viscous terms to leading order and fundamentally alters the character of
openaire   +2 more sources

New Tokamak Plasma Confinement Regime Realized by Utilizing Small Magnetic Perturbations in the EAST Tokamak

PRX Energy
Achieving sustained high plasma confinement both in the core and at the edge, without crashes due to edge instabilities, is highly desirable for efficient fusion energy production in a tokamak device.
Hui Sheng, Youwen Sun, Alberto Loarte, Tonghui Shi, Yingying Li, Jiale Chen, Yueqiang Liu, Yunfeng Liang, Shaojie Wang, Ling Zhang, Wenmin Zhang, Chengxi Zhou, Lei Ye, Shifeng Mao, Tianqi Jia, Huihui Wang, Manni Jia, Qun Ma, Xuemin Wu, Pengcheng Xie, Cheng Ye, Shuai Gu, Nan Chu, Jinping Qian, Qing Zang, Haiqing Liu, Yuqi Chu, Xuexi Zhang, Hailin Zhao, Yanmin Duan, Jinfang Wang, Minyou Ye, Baonian Wan   +32 more
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Surface roughness effects on plasma near a divertor plate and local impact angle

Nuclear Materials and Energy, 2017
The impact of rough surface topography on the electric potential and electric field is generally neglected due to the small scale of surface roughness compared to the width of the plasma sheath.
Wanpeng Hu, Shuyu Dai, A. Kirschner, Dezhen Wang   +3 more
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Structural and chemical evolution of fluorocarbon coatings on reactor walls and their run-to-run impacts on film deposition in C4F8/Ar/N2 plasma processing

Applied Surface Science Advances
Although unintentional contamination of the inner chamber wall during repeated plasma processing can substantially affect semiconductor device performance, the quantitative impact of chamber wall conditions remains underexplored.
Woojin Park, Sangjun Park, Jonggu Han, Solee Park, Se Youn Moon   +4 more
doaj   +1 more source

Thomson scattering of plasma turbulence on PSI-2

Nuclear Materials and Energy, 2017
The turbulent transport in the edge of fusion reactors can be conveniently simulated by linear plasma devices with long duty cycles. At high input power steady state plasma discharges at PSI-2 exhibit intermittent fluctuations similar to the edge of ...
M. Hubeny, B. Schweer, D. Luggenhölscher, U. Czarnetzki, B. Unterberg   +4 more
doaj   +1 more source

Heat and particle exhaust in high-performance plasmas in Wendelstein 7-X

Nuclear Fusion
The paper reports for the first time the heat and particle exhaust at the plasma boundary through various edge diagnostics for the high-performance plasma obtained after pellet injection on Wendelstein 7-X.
Yu Gao, Joachim Geiger, Marcin W. Jakubowski, Arun Pandey, Sergey Bozhenkov, Yuhe Feng, Michael Endler, Jürgen Baldzuhn, Valeria Perseo, Thierry Kremeyer, Georg Schlisio, Aleix Puig Sitjes, Matthias Otte, Dirk Naujoks, Maciej Krychowiak, Ralf König, Daihong Zhang, Tamás Szepesi, Gábor Kocsis, Gábor Cseh, Attila Buzás, Fabio Pisano, Alexander Knieps, the W7-X Team   +23 more
doaj   +1 more source