Ruction of Numerical Dispersion in 2D-LOD-FDTD Method through Parameter Optimization

摘要：

　　This paper presents a parameter optimized local one dimension (PO-LOD) FDTD method based on (2,4) stench to achieve better dispersion performance.With different optimization schemes,the method can be applied to satisfy various requirements,such as minimum dispersion error in the axes direction,in the diagonal direction,for two arbitrary angles,and minimum average dispersion error.Through the stability analysis for the (2,4) LOD-FDTD method,it can be proved all the schemes proposed here are unconditionally stable.Through comparison,it can be concluded that (2,4) LOD-FDTD method outperforms the previous parameter optimized LOD-FDTD method based on the (2,2) LOD-FDTD stencil in several aspects.

关键词： Courant-Friedrich-Levy (CFL) limit locally one-dimensional scheme alternating direction implicit unconditional stability and numerical dispersion

作者: Qi-Feng Liu Wen-Yan Yin Chong-Hua Fang Jing-Wei Liu

会议类型: 国际会议

会议名称: Asia-Pacific Conference on Environmental Electromagnetics (2012年第六届亚太环境电磁学会议(CEEM 2012))

会议地点: 上海

会议语种:英文

页码: 278-281

在线出版日期: 2012-11-06（万方平台首次上网日期，不代表论文的发表时间）