论文标题
基于边缘湍流的传输和对迭代的影响
First-principles density limit scaling in tokamaks based on edge turbulent transport and implications for ITER
论文作者
论文摘要
基于动荡的传输考虑因素的第一原理缩放定律,以及从ASDEX升级,JET和TCV Tokamaks出现的多机器密度限制数据库,表明,边界湍流传输与等离子体碰撞的增加可以在Tokamaks中达到最大的密度。该缩放定律表明对加热能力的依赖性很强,因此,在无意识的H-L转变的情况下,与Greenwald的经验缩放相比,ITER的安全边缘明显更大(Greenwald等,Nucl。Fusion,28(12),1988)。
A first-principles scaling law, based on turbulent transport considerations, and a multi-machine database of density limit discharges from the ASDEX Upgrade, JET and TCV tokamaks, show that the increase of the boundary turbulent transport with the plasma collisionality sets the maximum density achievable in tokamaks. This scaling law shows a strong dependence on the heating power, therefore predicting for ITER a significantly larger safety margin than the Greenwald empirical scaling (Greenwald et al, Nucl. Fusion, 28(12), 1988) in case of unintentional H-L transition.