论文标题
能量粒子传输：扩散与对流和相位屏障
Energetic particle transport: diffusion vs convection and phase-space barriers
论文作者
论文摘要
对于ITER 15MA 15MA基线场景：在[PPCF 58，014019（2016）]中分析了多个AlfVén本征谱的情况下，能量颗粒的重新分布：非线性混合模拟（在其众所周知的限制内）指出，在某些条件下，运输可能由Avalanches统治。这些现象通过[PPCF 64，035010（2022）]的1D简化描述正确地重现。在这里，使用这种简化的1D模型，我们定义了自洽的能量粒子重新分布的传输特征（对流/扩散）。使用拉格朗日相干结构技术研究了相空间中的传输壁垒。
Energetic particle redistribution in the presence of multiple Alfvén eigenmodes is analyzed in [PPCF 58, 014019 (2016)] for the ITER 15MA baseline scenario: non-linear hybrid simulations (within their well known limits) point out that transport can be dominated by avalanches under certain conditions. These phenomena are properly reproduced by the 1D reduced description of [PPCF 64, 035010 (2022)]. Here, using this simplified 1D model, we define the transport character (convective/diffusive) of self-consistent energetic particle redistribution. Transport barriers in phase space are studied using the Lagrangian Coherent Structures technique.
