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Vector fitting realisation of exact time domain modal nonreflecting boundary condition

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Bavelis, Konstantinos and Mias, Christos. (2010) Vector fitting realisation of exact time domain modal nonreflecting boundary condition. Electronics Letters, Vol.46 (No.11). pp. 760-761. ISSN 0013-5194

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Official URL: http://dx.doi.org/10.1049/el.2010.1119

Abstract

To employ the modal nonreflecting boundary condition (MNRBC) in cylindrical coordinates in the finite element time domain (FETD) method, a time domain kernel expression must be found that it is the inverse Laplace transform (ILT) of a known frequency domain function. The inverse Laplace transformation is achieved using a methodology based on the partial fraction expansion of the frequency domain function. However, to date, no FETD results have been published based on this MNRBC methodology. A simpler implementation of the methodology based on vector fitting (VF) is proposed. Using the VF approach, FETD-MNRBC results of plane wave scattering from a cylinder are presented for the first time.

Item Type:	Journal Article
Subjects:	Q Science > QA Mathematics T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science > Engineering
Library of Congress Subject Headings (LCSH):	Finite element method, Boundary value problems
Journal or Publication Title:	Electronics Letters
Publisher:	The Institution of Engineering and Technology
ISSN:	0013-5194
Official Date:	27 May 2010
Volume:	Vol.46
Number:	No.11
Number of Pages:	2
Page Range:	pp. 760-761
Identification Number:	10.1049/el.2010.1119
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
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URI:	http://wrap.warwick.ac.uk/id/eprint/40481