K. Miyagawa, S. Matsumoto, Y. Baba, N. Nagaoka, and A. Ametani (Japan)
Constrained interpolation profile method, electromagnetic field, finite-difference time-domain method, lightning
In this paper, a numerical procedure for calculating electromagnetic fields in a three-dimensional space using the constrained interpolation profile (CIP) method is presented. Then, this method is applied to calculating electromagnetic fields, which are generated by a lightning return-stroke current wave propagating upward along a vertical straight channel located on flat perfectly conducting ground, and the CIP-calculated waveforms are compared with the corresponding waveforms calculated using the finite-difference time-domain (FDTD) method.
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