西南交通大学学报2013，Vol.48Issue(4)：776-782,7.DOI:10.3969/j.issn.0258-2724.2013.04.028
并行时域有限差分法网格自动剖分技术
Cartesian Mesh Generator for Parallel Finite-Difference Time-Domain Method
摘要
Abstract
In order to generate discrete geometric-model that can be solved by the finite-difference time-domain (FDTD) method,and avoid complicated manual operations,an efficient parallel mesh generation technique for massively parallel FDTD simulation was presented.The parallel mesh generator is capable of dissecting arbitrary 3D multi-material models,with triangle-facet computer aided design files as input data.Without the need for excessive data communication between the processors,its parallel efficiency was close to 100％ in the test.The coupling effect of a simple computer case with a microstrip board was simulated by the FDTD method,based on this mesh generator.The results by the FDTD coincided with the ones calculated by the commercial electromagnetic simulation software,demonstrating the correctness of this mesh dissection method.Finally,when dissecting a real computer case with 250 processors and the grid number of O.6 billion,the CPU time was only about 0.2 s.This efficient mesh dissection indicates that the proposed parallel mesh generation technique can efficiently solve the modeling in massively parallel FDTD simulation.关键词
时域有限差分法/网格剖分/并行计算/计算机辅助设计Key words
finite-difference time-domain (FDTD) / mesh generation / parallelization / computer aided design (CAD)分类
数理科学引用本文复制引用
陈伶璐,周海京,李瀚宇,傅海军,廖成..并行时域有限差分法网格自动剖分技术[J].西南交通大学学报,2013,48(4):776-782,7.基金项目
国家自然科学基金委员会-中国工程物理研究院联合基金资助项目(11076022) （11076022）
高等学校博士学科点专项科研基金资助项目(20120184110013) （20120184110013）
中央高校基本科研业务费专项资金专题研究项目(SWJTU12ZT08) （SWJTU12ZT08）
