摘要
在时域有限差分(FDTD)法中采用亚网格边界条件(SGBC)法对复合材料薄层结构进行建模,可以突破复合材料薄层对空间步长的限制从而大大降低计算成本。基于大规模并行化平台JASMIN实现了SGBCFDTD算法,通过对复合材料薄层结构的自动建模和适配,实现对复合材料薄层的快速并行化处理。利用所开发的并行SGBC-FDTD算法计算分析了含不同电磁特性复合材料薄层方舱在0.1~1.0 GHz内的电磁屏蔽效能,结果表明采用并行SGBC-FDTD算法的计算结果与全波分析软件计算结果吻合完好,且计算效率显著提升。
The subgridding boundary condition(SGBC)based modeling of thin composite layer in Finite-Difference Time-Domain(FDTD)simulation of enclosures breaks the constraint that the mesh size should be less than the smallest dimension of thin composite layer to get more accurate results,and therefore greatly reduce the computational cost.A large-scale parallelization platform JASMIN based modeling method of SGBC-FDTD was developed.The thin composite layer can be automatically modeled and adaptively allocated in the developed parallelized SGBC-FDTD code.The parallelized SGBC-FDTD algorithm was used to analyze the electromagnetic shielding effectiveness of enclosures containing composite thin layers with different electromagnetic properties in the frequency range of 0.1−1.0 GHz.The results show that shielding effectiveness predicted using the parallelized SGBCFDTD algorithm are in good agreement with the ones calculated by a full-wave analysis software,while the calculation efficiency is significantly improved.
作者
钟金逾
刘强
闫丽萍
赵翔
孟雪松
周海京
Zhong Jinyu;Liu Qiang;Yan Liping;Zhao Xiang;Meng Xuesong;Zhou Haijing(Department of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China;Institute of Applied Physics and Computational Mathematics,Beijing 100088,China)
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2021年第5期45-52,共8页
High Power Laser and Particle Beams
基金
国家自然科学基金项目(61877041)。
关键词
并行化
复合材料
亚网格边界条件法
时域有限差分法
屏蔽效能
parallelization
composite
subgridding boundary condition
finite-difference time-domain
shielding effectiveness
