NDLI: Influences of mesh size and lightning channel length on lightning electromagnetic field calculation using FDTD algorithm

Content Provider	IEEE Xplore Digital Library
Author	Yang Bo Zhou Bi-hua Chen Yong-guang Meng Xin
Copyright Year	2009
Description	Author affiliation: EMP Laboratory, PLA Univ. of Sci. &Tech., Nanjing 210007, China (Yang Bo; Zhou Bi-hua; Meng Xin) \|\| Jiangsu Yongfeng Machinery Co., Ltd., China (Chen Yong-guang)
Abstract	One of the most important problems of FDTD method used in calculation of lightning electromagnetic effects is that the calculation is very expensive, time consuming, and sometimes even impossible due to the computer limitations. Mesh size and lightning channel length can greatly affect calculation speed in lightning electromagnetic field calculation. In this paper, Influences of different mesh sizes and the lightning channel lengths on the calculation have been discussed. Very strait grid can be used in lightning electromagnetic field calculation without any scatter object; however, too strait grid will cause error when scatter object is taken into consideration. The proposed 7500m channel length is not necessary for lightning electromagnetic field in the vicinity of the channel. Shorter channel can be used to calculate the nearby lightning electromagnetic fields; closer the area we care about is, shorter the channel is necessary.
Starting Page	349
Ending Page	352
File Size	740441
Page Count	4
File Format	PDF
ISBN	9781424443444
DOI	10.1109/CEEM.2009.5303591
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-09-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lightning Electromagnetic fields Finite difference methods Time domain analysis Electromagnetic scattering Light scattering Wire EMP radiation effects Laboratories Programmable logic arrays FDTD mesh size lightning channel length
Content Type	Text
Resource Type	Article

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