Energy confinement scaling from the international stellarator database
Energy confinement scaling from the international stellarator database
复制标题
来自国际仿星器数据库的能量限制缩放
DOI：
10.1088/0029-5515/36/8/i11
复制
发表时间：
1996
期刊：
影响因子：
3.3
通讯作者：
T. Obiki
中科院分区：
文献类型：
--
作者：
U. Stroth;M. Murakami;R.A. Dory;H. Yamada;S. Okamura;F. Sano;T. Obiki
提出了关于全球能量限制的国际仿星器数据库。它包括来自 ATF、CHS 和 Heliotron-E 日光管/torsatron 以及 W7-A 和 W7-AS 无切变仿星器的总共 859 个放电。讨论了不同设备的一些设计方面和操作技术。数据库中的数据代表 L 模式限制区域中的电子回旋加速器加热 (ECH) 和中性束注入 (NBI) 加热放电。 H 模式等增强限制机制的结果将在别处报告。针对各个设备、日光管/扭转管和无剪切仿星器的子集以及组合数据集，给出了能量限制时间的回归表达式。发现组合缩放 ISS-95 能够令人满意地描述大型托卡马克 L 模式数据集。基于各种标度表达式讨论了仿星器和托卡马克数据的比较方面。为了使感兴趣的同事可以使用该数据库，详细描述了该数据库的结构，其组织方式与 ITER 约束数据库类似。
An international stellarator database on global energy confinement is presented. It comprises a total of 859 discharges from the ATF, CHS and Heliotron-E heliotron/torsatrons and the W7-A and W7-AS shearless stellarators. Some design aspects and operation techniques of the different devices are discussed. The data in the database represent electron cyclotron heated (ECH) and neutral beam injection (NBI) heated discharges in the L mode confinement regime. Results from enhanced confinement regimes such as H mode will be reported elsewhere. Regression expressions for the energy confinement time are given for the individual devices, for the subsets of heliotron/torsatrons and shearless stellarators and for the combined dataset. The combined scaling ISS-95 is found to describe satisfactorily a large tokamak L mode dataset. The aspects of comparing stellarator and tokamak data are discussed on the basis of various scaling expressions. In order to make this database available to interested colleagues, the structure of the database, which is described in detail, is organized in a similar way as the ITER confinement databases