A Statistical Approach for Predicting Thermal Diffusivity Profiles in Fusion Plasmas as a Transport Model
A Statistical Approach for Predicting Thermal Diffusivity Profiles in Fusion Plasmas as a Transport Model
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作为输运模型预测聚变等离子体热扩散率分布的统计方法
DOI：
10.1585/pfr.9.1302137
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
M. Yokoyama
中科院分区：
文献类型：
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作者：
M. Yokoyama
提出了一种统计方法来预测聚变等离子体中的热扩散率分布作为输运“模型”。它可以分别提供离子热扩散率和电子热扩散率(χi和χe)的回归表达式，以建立它们的径向分布。这封信提出的一种方法超越了传统的全局约束时间(τE)的标度定律，因为它还处理轮廓(温度、密度、加热沉积等)。随着综合运输分析套件对实验数据的广泛应用而积累的分析数据库使这一方法成为可能。在这封信中，TASK3D-a[M.Yokyama等人，等离子体聚变研究9,3402017(2014年)]高离子温度(高钛)等离子体分析数据库[H.Takahashi等人，Nucl.Fusion 53,073034(2013年)]在LHD(大型螺旋装置)中[O.Kaneko等人，Nucl.Fusion 53,104015(2013年)]被用作描述一种方法的例子。
A statistical approach is proposed to predict thermal diffusivity profiles as a transport “model” in fusion plasmas. It can provide regression expressions for the ion and electron heat diffusivities (χi and χe), separately, to construct their radial profiles. An approach that this letter is proposing outstrips the conventional scaling laws for the global confinement time (τE) since it also deals with profiles (temperature, density, heating depositions etc.). This approach has become possible with the analysis database accumulated by the extensive application of the integrated transport analysis suite to experiment data. In this letter, TASK3D-a [M. Yokoyama et al., Plasma Fusion Res. 9, 3402017 (2014)] analysis database for high-ion-temperature (high-Ti) plasmas [H. Takahashi et al., Nucl. Fusion 53, 073034 (2013)] in the LHD (Large Helical Device) [O. Kaneko et al., Nucl. Fusion 53, 104015 (2013)] is used as an example to describe an approach.