DocumentCode
1397771
Title
An analytical-FDTD method for near LEMP calculation
Author
Sartori, Carlos A F ; Cardoso, José Roberto
Author_Institution
Escola Politecnica, Sao Paulo Univ., Brazil
Volume
36
Issue
4
fYear
2000
fDate
7/1/2000 12:00:00 AM
Firstpage
1631
Lastpage
1634
Abstract
The paper presents a hybrid method for evaluating the electromagnetic field in the vicinity of the lightning channel base. Several models have been proposed for this purpose, but, in spite of general agreement on the magnetic field results, the literature shows quite different results concerning the intensity and waveshape of the near electric field. The proposed method is an alternative approach that takes advantage of this fact to calculate, first, the magnetic field, and, secondly, based partially on the FDTD method, the electric field. The suitability of this procedure is checked through the comparison with another method, for a particular configuration proposed in the literature
Keywords
electromagnetic pulse; finite difference time-domain analysis; lightning; LEMP; analytical FDTD model; electric field; electromagnetic field; lightning channel; magnetic field; Approximation algorithms; Conductivity; Current density; Difference equations; Finite difference methods; Magnetic analysis; Magnetic flux density; Permeability; Permittivity;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.877754
Filename
877754
Link To Document