A numerical simulation method for solving electromagnetic-mechanical coupling field

IF 2.2 4区工程技术 Q3 ENGINEERING, MULTIDISCIPLINARY Journal of Engineering Research Pub Date : 2025-06-01 Epub Date: 2024-04-25 DOI:10.1016/j.jer.2024.04.016

Juanmian Lei , Wanyi Liu , Yong Yu , Zheng Luo

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Abstract

A new numerical simulation method based on the finite volume method has been proposed to address the challenges associated with the pseudo-oscillation phenomenon that occurs with an increased Péclet number, as well as determining an appropriate time step for electromagnetic-mechanical coupled physical field calculations. This method utilizes the concept of upwind from Computational Fluid Dynamics (CFD) to solve Maxwell's equations, a finite-volume method for discretizing the electromagnetic diffusion equations. Through computing typical electromagnetic field problems such as TEAM problem 9–1 and comparing the results to the literature, it has been confirmed that this method has sufficient computational accuracy to solve electromagnetic field numerical simulation problems containing moving conductors. Additionally, a three-dimensional simulation model of the electromagnetic coil gun has been established to verify the viability of the proposed method for solving magnetic field problems under the electromagnetic launch (EML) system. The study also examined the change in magnetic field strength and current density of the EML device during the launching process. The results lay the foundation for the technical application of this method.

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求解电磁机械耦合场的数值模拟方法

提出了一种新的基于有限体积法的数值模拟方法，以解决随着psamiclet数的增加而出现的伪振荡现象，并确定适当的时间步长进行电磁-机械耦合物理场计算。该方法利用计算流体力学（CFD）中迎风的概念来求解麦克斯韦方程组，这是一种用于电磁扩散方程离散化的有限体积方法。通过对TEAM问题9-1等典型电磁场问题的计算，并将计算结果与文献进行比较，证实了该方法具有足够的计算精度，可用于求解含运动导体的电磁场数值模拟问题。建立了电磁线圈炮的三维仿真模型，验证了该方法解决电磁发射系统磁场问题的可行性。研究还检测了EML器件在发射过程中磁场强度和电流密度的变化。研究结果为该方法的技术应用奠定了基础。

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来源期刊

Journal of Engineering Research ENGINEERING, MULTIDISCIPLINARY-

CiteScore

1.60

自引率

10.00%

发文量

181

审稿时长

20 weeks

期刊介绍： Journal of Engineering Research (JER) is a international, peer reviewed journal which publishes full length original research papers, reviews, case studies related to all areas of Engineering such as: Civil, Mechanical, Industrial, Electrical, Computer, Chemical, Petroleum, Aerospace, Architectural, Biomedical, Coastal, Environmental, Marine & Ocean, Metallurgical & Materials, software, Surveying, Systems and Manufacturing Engineering. In particular, JER focuses on innovative approaches and methods that contribute to solving the environmental and manufacturing problems, which exist primarily in the Arabian Gulf region and the Middle East countries. Kuwait University used to publish the Journal "Kuwait Journal of Science and Engineering" (ISSN: 1024-8684), which included Science and Engineering articles since 1974. In 2011 the decision was taken to split KJSE into two independent Journals - "Journal of Engineering Research "(JER) and "Kuwait Journal of Science" (KJS).