Accurate Sparse Conformal Mesh Generation Method for Reducing Spatial Redundancy in Conformal FDTD

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-01-13 DOI:10.1109/LAWP.2025.3527451

Yuan Fan;Yuhao Zhou;Yanan Liu;Han Liu;Xiao Xu;Liuge Du;Jia Zhao

引用次数: 0

Abstract

A 3D-CAD-based sparse conformal mesh generation (SC-MG) method is proposed to distinguish between conformal and nonconformal cells and calculate the volume fraction of perfectly matched object boundaries. A sparse conformal finite difference time domain (SC-FDTD) method specifically adapted to the SC-MG approach is also developed, which uses sparse storage to reduce the spatial redundancy of the FDTD iterative coefficients. The SC-MG method with lower time complexity is demonstrated to effectively resolve the distortion and loss of surface of the marching cubes-based method. The SC-FDTD has been shown to combine the benefits of low spatial redundancy of the staircase FDTD with the high accuracy characteristic of the conformal FDTD.

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减少共形FDTD空间冗余的精确稀疏共形网格生成方法

提出了一种基于3d - cad的稀疏保形网格生成（SC-MG）方法，用于区分保形单元和非保形单元，并计算完全匹配目标边界的体积分数。提出了一种适合于SC-MG方法的稀疏共形时域有限差分（SC-FDTD）方法，该方法利用稀疏存储来降低FDTD迭代系数的空间冗余。SC-MG方法具有较低的时间复杂度，可以有效地解决基于行军立方体的方法的曲面畸变和损耗问题。SC-FDTD结合了阶梯FDTD的低空间冗余和共形FDTD的高精度特性。

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 Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.