Heat Transport During H-Mode in the HL-2A Tokamak

Heat Transport During H-Mode in the HL-2A Tokamak
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HL-2A 托卡马克 H 模式期间的热传输

DOI:
10.1088/1009-0630/15/3/06
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发表时间:
2013-03
影响因子:
1.7
通讯作者:
Liu Zetian
Liu Zetian
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Yang Qingwei;Shi Zhongbing;Cui Zhengying;Zhong Wulv;Dong Yunbo;Chen Chengyuan;Feng Beibin;Yao Lianghua;Liu Zetian

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在HL-2A装置上成功地进行了微扰电子热输运实验。超声分子束注入具有局域化好、沉积深度大的特点,可以诱导电子温度脉冲的传播。一个模型的基础上的电子热传输在圆柱形的几何形状已被应用到重建测量的幅度和相位分布的电子温度扰动。结果表明,在H模等离子体基座区附近,热输运明显减弱。在"剖面刚度/弹性"区域,在L模和H模等离子体中观察到相似的热扩散率,这验证了托卡马克中的梯度驱动输运物理。
Perturbative experiments on electron heat transport have been successfully conducted on the HL-2A tokamak. The pulse propagation of the electron temperature is induced by the supersonic molecular beam injection (SMBI), which has characteristics of good localization and deep deposition. A model based on the electron heat transport in cylindrical geometry has been applied to reconstruct the measured amplitude and phase profiles of the electron temperature perturbation. The results show that the heat transport is significantly reduced near the pedestal region of the H-mode plasma. In the "profile stiffness/resilience" region, similar heat diffusivities have been observed in L-mode and H-mode plasmas, which verifies the gradient-driven transport physics in tokamaks.
DOI: 10.1063/1.859781
发表时间: 1991-11
期刊: Physics of fluids. B, Plasma physics
影响因子: --
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