连接轴对称磁镜的仿星器 第1部分：线圈设计、MHD平衡与物理指标
Stellarators Linking Axisymmetric Mirrors Part 1: Coil Design, MHD Equilibrium, and Physics Metrics
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中文总结 AI 辅助
本研究提出SLAMs混合概念，将OP仿星器与轴对称磁镜结合，通过线圈分离与插入设计，验证真空磁通面保持，并计算MHD平衡及物理指标，提供第一性原理分析。
中文摘要 AI 辅助
我们展示了一种仿星器-磁镜混合概念的计算设计研究，即连接轴对称磁镜的仿星器（SLAMs），其中优化的环向全对称（OP或QI）仿星器作为旋转变换生成元件，连接长的轴对称（圆形截面）磁镜。从DESC全对称性数据库获得的OP前体构型出发，我们通过沿装置中平面分离OP模块化线圈并在所得间隙中插入轴对称平面磁镜线圈，构建了场周期nFP = 2的SLAMs混合线圈组。磁力线追踪显示，嵌套的真空磁通面在此挤出过程中得以保留，跨越一系列磁镜段长度，且在磁镜插入点处截面定性保持。我们利用磁力线追踪数据映射磁通面形状，并使用GVEC固定边界求解器计算理想磁流体动力学（MHD）平衡，评估物理指标，如新经典输运代理（eps_eff）、真空磁阱（W）和回旋动理学热通量（Q），从而使用现代仿星器分析工具对此类概念进行第一性原理分析。
英文摘要
We present a computational design study of a stellarator-mirror hybrid concept, Stellarators Linking Axisymmetric Mirrors (SLAMs), in which an optimized poloidally omnigenous (OP or QI) stellarator serves as the rotational-transform-generating element that links long, axisymmetric (circular cross-section) magnetic mirrors. Starting from an OP precursor configuration obtained from the DESC omnigenity database, we construct hybrid coil sets for field period nFP = 2 SLAMs by separating the OP modular coils along the device midplane and inserting axisymmetric planar mirror coils into the resulting gap. Field-line tracing shows that nested vacuum flux surfaces survive this extrusion across a range of mirror-section lengths, with the cross-section qualitatively preserved at the point where the mirror is inserted. We use the field-line tracing data to map the shape of a surface and use the GVEC fixed-boundary solver to calculate an ideal magnetohydrodynamic (MHD) equilibrium and evaluate physics metrics such as the neoclassical transport proxy (eps_eff), the vacuum magnetic well (W), and the gyrokinetic heat fluxes (Q), providing a first-principles analysis of such concepts using modern stellarator analysis tools.
发表机构
- Technical University of Munich（慕尼黑工业大学）
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