Model for Heat Pinch in Reversed Magnetic Shear Tokamak Plasmas

Chin. Phys. Lett.

1998, Vol. 15

Issue (10): 721-723 DOI:

Original Articles

Model for Heat Pinch in Reversed Magnetic Shear Tokamak Plasmas

QIU Xiao-ming;WANG Ai-ke

Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041

Cite this article:

QIU Xiao-ming, WANG Ai-ke 1998 Chin. Phys. Lett. 15 721-723

Download: PDF(239KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract A simple model is proposed to explain the recent experiment in TFTR and the more recent one in JT-60U. In the model the significant reduction of effective thermal diffusivities of ions and electrons ( x_i^eff and x_e^eff) is attributed to the inward flows of drift wave energy, induced by the synergistic effects of the reversed magnetic shear and E X B velocity shear, where E is due to ion pressure gradient. Numerical results demonstrate the predictions of the present model, in particular, the numerical results for x_i^eff are in good agreement with experimental trents.

Keywords: 52.55.Fa 52.25.Fi 52.35.Kt

Published: 01 October 1998

PACS:	52.55.Fa	(Tokamaks, spherical tokamaks)
	52.25.Fi	(Transport properties)
	52.35.Kt	(Drift waves)

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I10/0721

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	QIU Xiao-ming
	WANG Ai-ke

Related articles from Frontiers Journals

[1]	CHEN Shi-Qiang, WANG Hai-Xing. Transport Properties of Lithium Plasma[J]. Chin. Phys. Lett., 2012, 29(2): 721-723
[2]	DI Long, SHI Jian-Rong, WANG Shou-Jun, DONG Quan-Li, ZHAO Jing, LI Yu-Tong, FU Jia, WANG Fu-Di, SHI Yue-Jiang, WAN Bao-Nian, ZHAO Gang, ZHANG Jie, . Emission Lines of Boron, Carbon, Oxygen and Iron in Tokamak Plasma**[J]. Chin. Phys. Lett., 2011, 28(7): 721-723
[3]	CHEN Ran, XIE Jin-Lin, YU Chang-Xuan, LIU A-Di, LAN Tao, ZHANG Shou-Biao, HU Guang-Hai, LI Hong, LIU Wan-Dong . Identification of Low-Frequency Zonal Flow in a Linear Magnetic Plasma Device**[J]. Chin. Phys. Lett., 2011, 28(2): 721-723
[4]	JI Xiao-Quan, YANG Qing-Wei, LIU Yi, ZHOU Jun, FENG Bei-Bin, YUAN Bao-Shan. First Observation of Neoclassical Tearing Modes in the HL-2A Tokamak[J]. Chin. Phys. Lett., 2010, 27(6): 721-723
[5]	GAO Hong, , YU Qing-Quan. Heat Diffusion across a Strong Stochastic Magnetic Field in Tokamak Plasmas[J]. Chin. Phys. Lett., 2009, 26(6): 721-723
[6]	XIAO Wei-Wen, ZOU Xiao-Lan, DING Xuan-Tong, DONG Jia-Qi, LIU Ze-Tian, SONG Shao-Dong, GAO Ya-Dong, YAO Liang-Hua, FENG Bei-Bin, SONG Xian-Ming, CHEN Cheng-Yuan, SUN Hong-Juan, LI Yong-Gao, YANGQing-Wei, YAN Long-Wen, LIU Yi, DUAN Xu-Ru, PAN Chuan-Hong, LIU Yong. Observation of E×B Flow Velocity Profile Change Using Doppler Reflectometry in HL-2A[J]. Chin. Phys. Lett., 2009, 26(3): 721-723
[7]	SUN Hong-Juan, DING Xuan-Tong, YAO Liang-Hua, FENG Bei-Bin, LIU Ze-Tian, GAO Ya-Dong, LI Wei, LI Xue-Hong, DUAN Xu-Ru, YANG Qing-Wei. Heat Transport of Non-Local Effect with Modulated SMBI on HL-2A[J]. Chin. Phys. Lett., 2009, 26(3): 721-723
[8]	WANG Xiao-Jie, LIU Fu-Kun, ZHAO Lian-Min, JIA Hua, LIU Hong-Bao, KUANGGuang-Li. Design of a TE₁₀-TE₃₀ Rectangular Mode Converter for 4.6GHz LHCD Launcher in the Experimental Advanced Superconducting Tokamak[J]. Chin. Phys. Lett., 2009, 26(2): 721-723
[9]	ZHANG Jia-Guo, ZHANG Guo-Hui, CHEN Jin-Xiang. Measurement of Electron-Drift Velocity in Ar+CH₄Mixtures Using Double-Grid Method[J]. Chin. Phys. Lett., 2009, 26(11): 721-723
[10]	ZHOU Yan, LI Lian-Cai, LI Yong-Gao, JIAO Yi-Ming, DENG Zhong-Chao, YI Jiang, LIU Yi, ZHAO Kai-Jun, JI Xiao-Quan, PENG Bei-Bin, YANG Qing-wei, DUAN Xu-Ru, DING Xuan-Tong. Density Fluctuation Measurements Using FIR Interferometer on HL-2A Tokamak[J]. Chin. Phys. Lett., 2008, 25(7): 721-723
[11]	GAO Qing-Di, LONG Yong-Xing, DING Xuan-Tong, PAN Yu-Dong, ZHOU Yan, WANG Hao. Establishment of Configuration with Optimized Current Profile in Pellet Fuelled Discharge on HL-2A[J]. Chin. Phys. Lett., 2008, 25(2): 721-723
[12]	PENG Li-Li, GAO Zhe. Effect of Elongation on Critical Gradient for Toroidal Electron Temperature Gradient Modes[J]. Chin. Phys. Lett., 2008, 25(11): 721-723
[13]	SUN Hong-Juan, DING Xuan-Tong, YAO Liang-Hua, FENG Bei-Bin, LI Wei, PAN Yu-Dong, LIU Ze-Tian, DUAN Xu-Ru, YANG Qing-Wei, LIU Yong. Observation of Non-Local Transport Phenomena with SMBI in HL-2A[J]. Chin. Phys. Lett., 2007, 24(9): 721-723
[14]	HAN Dong, GUO Wen-Kang, XU Ping, LIANG Rong-Qing. Theoretical Computation for Non-Equilibrium Air Plasma Electrical Conductivity at Atmospheric Pressure[J]. Chin. Phys. Lett., 2007, 24(8): 721-723
[15]	LIU Fei, WANG Wen-Hao, HE Ye-Xi, LIU Jun, TAN Yi, XIE Li-Feng, ZENG Long. Magnetic Fluctuation Measurement in Sino United Spherical Tokamak Plasma[J]. Chin. Phys. Lett., 2007, 24(7): 721-723

Viewed

Full text

Abstract