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On the representation of thin wires inside lossy dielectric materials for FDTD‐based LEMP simulations
Author(s) -
Tatematsu Akiyoshi,
Rachidi Farhad,
Rubinstein Marcos
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22932
Subject(s) - lossy compression , finite difference time domain method , lossless compression , computation , electromagnetic shielding , electrical conductor , ground , dielectric , computer science , representation (politics) , lightning (connector) , acoustics , materials science , electrical engineering , electronic engineering , power (physics) , physics , engineering , optics , algorithm , quantum mechanics , data compression , artificial intelligence , politics , law , political science
The finite‐difference time‐domain method is one of the most widely used numerical electromagnetic computation techniques, and it has become an effective tool for analyzing electromagnetic transient phenomena in three‐dimensional structures and grounding systems. However, the available approaches for representing thin wires apply only to bare conductors such as overhead power lines and earth electrodes. In this work, we demonstrate the applicability of thin‐wire representation techniques to wires surrounded by both lossy and lossless media, such as reinforcing bars inside lossy concrete. The validated technique is then illustrated through the study of a reinforced‐concrete building struck by lightning to evaluate the effect of concrete on the penetration of lightning electromagnetic pulses inside the building. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.