用于实时监测大型托卡马克中电磁力引起的结构位移的低阶建模

IF 2.1 2区物理与天体物理 Q2 PHYSICS, FLUIDS & PLASMAS

Plasma Physics and Controlled Fusion Pub Date : 2024-09-16 DOI:10.1088/1361-6587/ad7889

F Lucchini, A Frescura, R Torchio, P Alotto and P Bettini

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引用次数: 0

摘要

对热核聚变装置真空容器由电磁载荷引起的结构位移进行实时监测是一项非常有意义的工作。本文在积分方程法和有限元法中应用了模型阶次缩减法，以开发与实时执行兼容的电磁和结构缩减阶次模型（ROM），从而实现对托卡马克机器关键位置的应变和位移的实时监测。在构建 ROM 的离线阶段，应用了基于分层矩阵的低秩压缩技术来降低计算成本。数值结果表明了该方法的准确性，并证明了与标准硬件实时执行的兼容性。

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Reduced order modeling for real-time monitoring of structural displacements due to electromagnetic forces in large scale tokamaks

The real-time monitoring of the structural displacement of the vacuum vessel of thermonuclear fusion devices caused by electromagnetic loads is of great interest. In this paper, model order reduction is applied to the integral equation methods and the finite elements method to develop electromagnetic and structural reduced order models (ROMs) compatible with real-time execution which allows for the real-time monitoring of strain and displacement in critical positions of Tokamaks machines. Low-rank compression techniques based on hierarchical matrices are applied to reduce the computational cost during the offline stage when the ROMs are constructed. Numerical results show the accuracy of the approach and demonstrate the compatibility with real-time execution in standard hardware.

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来源期刊

Plasma Physics and Controlled Fusion 物理-物理：核物理

CiteScore

4.50

自引率

13.60%

发文量

224

审稿时长

4.5 months

期刊介绍： Plasma Physics and Controlled Fusion covers all aspects of the physics of hot, highly ionised plasmas. This includes results of current experimental and theoretical research on all aspects of the physics of high-temperature plasmas and of controlled nuclear fusion, including the basic phenomena in highly-ionised gases in the laboratory, in the ionosphere and in space, in magnetic-confinement and inertial-confinement fusion as well as related diagnostic methods. Papers with a technological emphasis, for example in such topics as plasma control, fusion technology and diagnostics, are welcomed when the plasma physics is an integral part of the paper or when the technology is unique to plasma applications or new to the field of plasma physics. Papers on dusty plasma physics are welcome when there is a clear relevance to fusion.