FLARE: field line analysis and reconstruction for 3D boundary plasma modeling

IF 3.5 1区物理与天体物理 Q1 PHYSICS, FLUIDS & PLASMAS

Nuclear Fusion Pub Date : 2024-09-03 DOI:10.1088/1741-4326/ad7303

H. Frerichs

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引用次数: 0

Abstract

The FLARE code is a magnetic mesh generator that is integrated within a suite of tools for the analysis of the magnetic geometry in toroidal fusion devices. A magnetic mesh is constructed from field line segments and permits fast reconstruction of field lines in 3D boundary plasma codes such as EMC3-EIRENE. Both intrinsically non-axisymmetric configurations (stellarators) and those with symmetry breaking perturbations of an axisymmetric equilibrium (tokamaks) are supported. The code itself is written in Modern Fortran with MPI support for parallel computing, and it incorporates object-oriented programming for the definition of the magnetic field and the material surface geometry. Extended derived types for a number of different magnetohydrodynamic equilibrium and plasma response models are implemented. The core element of FLARE is a field line tracer with adaptive step-size control, and this is integrated into tools for the construction of Poincaré maps and invariant manifolds of X-points. A collection of high-level procedures that generate output files for visualization is build on top of that. The analysis modules are build with Python frontends that facilitate customization of tasks and/or scripting of parameter scans.

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FLARE：用于三维边界等离子体建模的场线分析和重构

FLARE 代码是一种磁场网格生成器，集成在一套工具中，用于分析环形聚变装置中的磁场几何形状。磁网格由磁场线段构建，允许在三维边界等离子体代码（如 EMC3-EIRENE）中快速重建磁场线。既支持非轴对称结构（恒星器），也支持轴对称平衡的对称破缺扰动结构（托卡马克）。代码本身采用现代Fortran语言编写，支持MPI并行计算，并采用面向对象编程来定义磁场和材料表面几何形状。它还为许多不同的磁流体动力学平衡和等离子体响应模型实现了扩展的派生类型。FLARE 的核心要素是一个具有自适应步长控制的场线追踪器，并将其集成到用于构建 Poincaré 地图和 X 点不变流形的工具中。在此基础上，还构建了一系列高级程序，用于生成可视化输出文件。分析模块采用 Python 前端，便于定制任务和/或编写参数扫描脚本。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Fusion 物理-物理：核物理

CiteScore

6.30

自引率

39.40%

发文量

411

审稿时长

2.6 months

期刊介绍： Nuclear Fusion publishes articles making significant advances to the field of controlled thermonuclear fusion. The journal scope includes: -the production, heating and confinement of high temperature plasmas; -the physical properties of such plasmas; -the experimental or theoretical methods of exploring or explaining them; -fusion reactor physics; -reactor concepts; and -fusion technologies. The journal has a dedicated Associate Editor for inertial confinement fusion.