Frequency domain boundary element versus time domain finite element model for the transient analysis of horizontal grounding electrode

The paper deals with two different approaches to the assessment of the transient impedance of a horizontal grounding electrode: frequency domain boundary element analysis, based on the straight thin wire antenna model (AM) and generalized telegrapher’s equations combined with inverse Fast Fourier Tr...

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Veröffentlicht in:	Engineering analysis with boundary elements 2011-03, Vol.35 (3), p.375-382
Hauptverfasser:	Poljak, Dragan, Lucic, R., Doric, V., Antonijevic, S.
Format:	Artikel
Sprache:	eng
Schlagworte:	Boundary element method Boundary elements Electrodes Exact sciences and technology Finite elements Frequency domains Fundamental areas of phenomenology (including applications) Grounding Grounding electrodes Horizontal Mathematical analysis Mathematical models Mathematics Methods of scientific computing (including symbolic computation, algebraic computation) Numerical analysis. Scientific computation Physics Sciences and techniques of general use Time domain Transient response Transmission line modeling Wire antennas
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Beschreibung
Zusammenfassung:	The paper deals with two different approaches to the assessment of the transient impedance of a horizontal grounding electrode: frequency domain boundary element analysis, based on the straight thin wire antenna model (AM) and generalized telegrapher’s equations combined with inverse Fast Fourier Transform (FFT); and time domain finite element analysis based on the transmission line model (TLM) and standard telegrapher’s equations. Extensive numerical experiments have been undertaken and some of illustrative numerical results are presented in this paper.
ISSN:	0955-7997 1873-197X
DOI:	10.1016/j.enganabound.2010.10.001