Analysis of Lightning Electromagnetic Field on Numerical Terrian and Urban Model using Three-dimensional MW-FDTD Parallel Computation

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  • Oikawa Takaaki
    Advanced Course of Information and Electronic System Engineering, National Institute of Technology, Sendai College
  • Sonoda Jun
    Department of Intelligent and Electronic Systems, National Institute of Technology, Sendai College
  • Honma Noriyasu
    Tohoku Electric Power Co., Inc.
  • Sato Motoyuki
    Center for Northeast Asian Studies, Tohoku University

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Other Title
  • 3次元MW-FDTD法の並列計算による数値地図と都市モデルを用いた雷放電電磁界解析
  • 3ジゲン MW-FDTDホウ ノ ヘイレツ ケイサン ニ ヨル スウチ チズ ト トシ モデル オ モチイタ カミナリホウデン デンジカイ カイセキ

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Abstract

Analysis of lightning electromagnetic field using the finite-difference time-domain (FDTD) method have been studied in recent year. However,large-scale analysis on real environment have not been considered,because the FDTD method requires huge computational cost on large-scale analysis. We proposed a three-dimensional moving window FDTD (MW-FDTD) with parallel computation and applied to large-scale analysis of lightning electromagnetic field with a real numerical terrain model. In this paper, we have studied about large-scale analysis of lightning electromagnetic field with real urban models considering many buildings using our MW-FDTD with parallel computation. We have shown effects of observed electromagnetic field on urban model.

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