前沿 | 轴对称磁场中等离子体边界上的极不对称电势形成

IF 1.9 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Frontiers in Physics Pub Date : 2024-07-26 DOI:10.3389/fphy.2024.1398172

Trang Le, Yasuhiro Suzuki, Hiroaki Ohtani, Hiroki Hasegawa, Toseo Moritaka

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引用次数: 0

摘要

为了研究电动势的对称性，我们使用粒子内胞（PIC）代码，以两个空间维度（2D）和三个速度坐标（3V）来模拟环形装置边缘区域的等离子体传输。应用的二维磁场包括极环形和环形分量，它们在极环形方向上是周期性的。我们利用 PIC 仿真发现了磁梯度漂移与磁势形成之间的关系，而其他数值模型尚未捕捉到这种关系。我们发现，在轴对称磁配置中，反长宽比会影响磁势的不对称性。

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Frontiers | Poloidally asymmetric potential formation on plasma boundary in axisymmetric magnetic field

To study the symmetry of electrical potential, we model plasma transport in the edge region of a toroidal device with two spatial dimensions (2D) and three coordinates for velocities (3V) using a Particle-In-Cell (PIC) code. A two-dimensional magnetic field is applied, including poloidal and toroidal components, which are periodic in the poloidal direction. We discover relationships between the magnetic gradient drift and potential formation using PIC simulation, which has not been captured in other numerical models. We find that the inverse aspect ratio influences the asymmetry of the potential in an axisymmetric magnetic configuration.

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来源期刊

Frontiers in Physics Mathematics-Mathematical Physics

CiteScore

4.50

自引率

6.50%

发文量

1215

审稿时长

12 weeks

期刊介绍： Frontiers in Physics publishes rigorously peer-reviewed research across the entire field, from experimental, to computational and theoretical physics. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, engineers and the public worldwide.