论文标题
减少脉冲设计的Tokamak刮擦层的物理模型
Reduced Physics Model of the Tokamak Scrape-off-Layer for Pulse Design
论文作者
论文摘要
核心和边缘等离子体之间的动态相互作用在融合等离子体的限制和加热方面具有重要的后果。刮擦层（SOL）等离子体的运输在核心等离子体上施加边界条件，而通过SOL的中性转运会影响核心等离子体源。为了以合理的转弯时间更好地研究这些效果，需要减少模型。在本文中，我们介绍了SOL框模型，该模型是一个还原的SOL模型，该模型可以计算出核心对边缘粒子和功率通量以及回收系数的溶胶中的血浆温度和密度。盒子模型的分析性质使人们可以轻松地将SOL物理纳入控制室中的脉冲设计应用中的时间相关的传输求解器中。在这里，我们证明了与核心传输求解器transp的耦合，并将结果与密度和温度测量结果进行了比较，该结果通过NSTX放电的汤姆森散射和langmuir探针获得。讨论了对未来解释性和预测性模拟的影响。
The dynamic interplay between the core and the edge plasma has important consequences in the confinement and heating of fusion plasma. The transport of the Scrape-Off-Layer (SOL) plasma imposes boundary conditions on the core plasma, and neutral transport through the SOL influences the core plasma sourcing. In order to better study these effects in a self-consistent, time-dependent fashion with reasonable turn-around time, a reduced model is needed. In this paper we introduce the SOL Box Model, a reduced SOL model that calculates the plasma temperature and density in the SOL given the core-to-edge particle and power fluxes and recycling coefficients. The analytic nature of the Box Model allows one to readily incorporate SOL physics in time-dependent transport solvers for pulse design applications in the control room. Here we demonstrate such a coupling with the core transport solver TRANSP and compare the results with density and temperature measurements, obtained through Thomson scattering and Langmuir probes, of an NSTX discharge. Implications for future interpretive and predictive simulations are discussed.
