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Implementation of a separate fluid‐neutral energy equation in SOLPS‐ITER and its impact on the validity range of advanced fluid‐neutral models
Contributions to Plasma Physics ( IF 1.3 ) Pub Date : 2020-05-05 , DOI: 10.1002/ctpp.201900147
Wim Van Uytven 1 , Maarten Blommaert 1 , Wouter Dekeyser 1 , Niels Horsten 1 , Martine Baelmans 1
Affiliation  

In plasma edge transport codes for nuclear fusion devices, fluid‐neutral models offer an interesting alternative to the currently used kinetic Monte Carlo simulations, especially for cases of high ion‐neutral collisionality. In this paper, we elaborate a separate neutral energy equation in the state‐of‐the‐art SOLPS‐ITER code suite, which previously assumed perfect ion‐neutral temperature equilibration. Furthermore, we study the coupled plasma‐neutral solutions for a range of divertor operating regimes, proving the validity of these fluid‐neutral models for high‐recycling and detached regimes.

中文翻译:

在SOLPS-ITER中实现单独的流体中性能量方程式及其对高级流体中性模型的有效性范围的影响

在核聚变设备的等离子体边缘传输代码中,流体中性模型为当前使用的动力学蒙特卡洛模拟提供了一种有趣的替代方法,尤其是对于高离子中性碰撞性的情况。在本文中,我们在最新的SOLPS-ITER代码套件中阐述了一个单独的中性能量方程式,该方程式以前假定了理想的离子中性温度平衡。此外,我们研究了一系列偏滤器工作状态下的等离子体中性耦合解决方案,证明了这些流体中性模型对高回收率和分离态的有效性。
更新日期:2020-05-05
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