A MRTD Model for calculating Lightning return stroke electromagnetic fields

摘要：

　　In this paper,we construct a MRTD model in Cylindrical Grids with perfect matched layer (PML),and apply the MRTD method to calculate electromagnetic fields of lightning return stroke.According to the MRTD framework,scaling function of Dubieties wavelet is choosed for fields expansion and discrimination,special consideration are also given for absorption boundary condition.Numerical simulation results show that the MRTD method and FDTD method are consistent in calculating vertical electric field and azimuthal magnetic field.The MRTD method can significantly save both computational memory and CPU time with large gird mesh,as well as good numerical dispersion property.

关键词： lightning lightning electromagnetic pulse (LEMP) Multi-Resolution time-domain (MRTD) Finite-difference time-domain (FDTD)

作者: Zhi-dong Jiang Bi-hua Zhou Ya-wen Liu Bo Yang

作者单位: National Key laboratory on Electromagnetic Environment effect and electro-optical Engineering,PLA University of Science and Technology,NanJing,210007,China

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: 242-245

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）