Title :
Computation of Lightning Electromagnetic Pulses With the TLM Method in the 2-D Cylindrical Coordinate System
Author :
Tanaka, Yuichi ; Baba, Yuya ; Nagaoka, Naoto ; Ametani, Akihiro
Author_Institution :
Dept. of Electr. Eng., Doshisha Univ., Kyoto, Japan
Abstract :
In this paper, a procedure for computing electromagnetic fields with the transmission-line-modeling (TLM) method in the two-dimensional (2-D) cylindrical coordinate system has been derived. Then, it has been applied to analyzing electromagnetic pulses produced by a current wave propagating upward along a vertical lightning return-stroke channel. TLM-computed waveforms agree well with corresponding waveforms computed using analytical expression of Uman et al.and the finite-difference time-domain method.
Keywords :
computational electromagnetics; electromagnetic pulse; finite difference time-domain analysis; lightning; transmission line matrix methods; TLM-computed waveforms; current wave propagation; electromagnetic field computation; finite-difference time-domain method; lightning electromagnetic pulses; transmission-line-modeling method; two-dimensional cylindrical coordinate system; vertical lightning return-stroke channel; Computational modeling; Finite difference methods; Lightning; Ports (Computers); Time-domain analysis; Time-varying systems; 2-D cylindrical coordinate system; Electromagnetic field; finite-difference time-domain (FDTD) method; lightning; transmission-line-modeling (TLM) method;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.2013.2293760
