D. Fajardo, C. Angioni, E. Fable, G. Tardini, R. Bilato, T. Luda, R.M. McDermott, O. Samoylov, the ASDEX Upgrade Teama
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引用次数: 0
Abstract
In present-day fusion devices, central wave heating is crucial to avoid core tungsten (W) accumulation. In this work, we present an integrated modelling framework that reproduces the reduction of core W peaking in ASDEX Upgrade experiments when multiple transport channels are self-consistently evolved, emphasizing the effects of wave heating on turbulent and neoclassical W transport. Predictions for the ITER 15 MA baseline are then provided. We show that the core of a reactor is in a different transport regime for W as compared to present-day tokamaks. The challenges introduced by W arise from global radiation losses that can hinder operation in H-mode, instead of local central accumulation.
在当今的核聚变装置中，中心波加热对于避免堆芯钨（W）积累至关重要。在这项工作中，我们提出了一个综合建模框架，该框架再现了 ASDEX 升级实验中当多个传输通道自洽演化时内核钨峰值的减少，强调了波加热对湍流和新古典钨传输的影响。然后提供了对热核实验堆 15 MA 基线的预测。我们表明，与现今的托卡马克相比，反应堆堆芯处于不同的 W 输运系统中。W 带来的挑战来自可能阻碍 H 模式运行的全局辐射损失，而不是局部的中心累积。
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