Transport Simulation for Helical Plasmas by use of Gyrokinetic Transport Model
Transport Simulation for Helical Plasmas by use of Gyrokinetic Transport Model
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DOI：
10.1585/pfr.14.3403061
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发表时间：
2019-01-01
影响因子：
0.8
通讯作者：
Sugama, Hideo
中科院分区：
文献类型：
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作者：
Toda, Shinichiro;Nakata, Motoki;Sugama, Hideo
用热扩散率模型和拟线性通量模型对螺旋等离子体中电子和离子的温度分布进行了模拟[S.Toda等，Phys.等离子体26,012510(2019年)]电子和离子热湍流传输。这些模型可以用来评价非线性模拟结果的湍流输运情况。研究了离子温度梯度模不稳定的大螺旋器件(LHD)放电用高钛和低钛等离子体。动力学模拟结果的电子和离子温度分布与LHD的实验结果并不矛盾。对于LHD等离子体，用扩散系数模型和拟线性通量模型模拟的输运结果在允许的误差范围内再现了非线性模拟结果，从而解释了温度分布的实验结果。(C)2019年日本等离子体科学与核聚变研究学会
Transport simulation for the electron and ion temperature profiles is performed in helical plasmas by using the heat diffusivity models and the quasilinear flux models [S. Toda et al., Phys. Plasmas 26, 012510 (2019)] for the electron and ion heat turbulent transport. The turbulent transport for the nonlinear simulation results can be evaluated by these models. The high-Ti and low-Ti plasmas for the discharge in the Large Helical Device (LHD) are studied, where the ion temperature gradient mode is unstable. The electron and the ion temperature profiles of the dynamical simulation results do not contradict with those of the experimental results in the LHD. For the plasmas of the LHD in this study, the transport simulation results by the diffusivity models and the quasilinear flux models for the heat transport to reproduce the nonlinear simulation results in the allowable errors are found to explain the experimental results for the temperature profiles. (C) 2019 The Japan Society of Plasma Science and Nuclear Fusion Research