Multiphysics Coupling Study of a Novel Pulsed Strong Magnetic Coil

IF 1.3 4区物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS

IEEE Transactions on Plasma Science Pub Date : 2024-12-04 DOI:10.1109/TPS.2024.3502625

Mingzhi Zhu;Zhiye Du;Yadong Zhang

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Abstract

A pulsed strong magnetic coil can generate a pulsed strong magnetic field, which can be used in the electromagnetic launch, electromagnetic forming, pulsed power supply, and other fields. During the continuous discharge process, the coil temperature will continue to increase due to Joule heating. Effective thermal management is a necessary condition for the stable and reliable operation of the coil during continuous discharge. In this article, a method for heat dissipation of coils based on the principle of energy storage and heat absorption of phase change materials (PCMs) is proposed. A 2-D transient coupled heat-transfer model of the pulsed strong magnetic coil in phase change energy storage heat absorption mode is established in finite-element software. First, the accuracy of the simulation software is verified, and the correlation between the mesh and the time step is analyzed. Then, the temperature difference of the coil under the conditions of phase change heat absorption and natural heat dissipation at different discharge intervals was studied. Finally, the effects of latent heat, melting temperature, and thermal conductivity on the heat dissipation of the coil were analyzed. At the same time, to verify the mechanical properties of the side flange heat dissipation structure, we simulated and analyzed the structural field.

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新型脉冲强磁线圈的多物理场耦合研究

脉冲强磁线圈能产生脉冲强磁场，可用于电磁发射、电磁成形、脉冲电源等领域。在连续放电过程中，由于焦耳加热，线圈温度会不断升高。有效的热管理是线圈在连续放电过程中稳定可靠运行的必要条件。本文提出了一种基于相变材料储能吸热原理的线圈散热方法。利用有限元软件建立了脉冲强磁线圈在相变储能吸热模式下的二维瞬态耦合传热模型。首先，验证了仿真软件的精度，并分析了网格与时间步长之间的相关性。然后，研究了不同放电间隔下线圈在相变吸热和自然散热条件下的温级差。最后，分析了潜热、熔化温度和导热系数对线圈散热的影响。同时，为了验证侧翼缘散热结构的力学性能，对结构场进行了模拟分析。

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

IEEE Transactions on Plasma Science 物理-物理：流体与等离子体

CiteScore

3.00

自引率

20.00%

发文量

538

审稿时长

3.8 months

期刊介绍： The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.