volume | PIER Journals

Abstract

This paper proposes a method to calculate temperature distribution by analyzing periodic units, enabling efficient simulation of electromagnetic-thermal problems in periodic structures. Compared with traditional methods that require high memory and long computation times to process the entire large-scale model, this approach significantly reduces computational complexity by focusing on a single periodic unit and incorporating periodic thermal boundary conditions. In the study, electromagnetic losses are considered as the heat source, and the formula for periodic thermal boundary conditions is derived in conjunction with the heat conduction equation, achieving the integration of periodic electromagnetic-thermal boundary conditions. Numerical validation and comparison with global model results demonstrate that the proposed method maintains accuracy while achieving high efficiency. Furthermore, the method is applied to an artificial magnetic conductor (AMC) model, with calculation results closely matching those of large-scale unit arrays, further verifying the correctness and applicability of the algorithm.

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Dr. Zhonghui Li

Professor Minquan Li

Dr. Xian-Liang Wu

Dr. Shuangqing Cao

Dr. Rongxian Bai