NDLI: Zooming into the near field: Shear-horizontal polarized acoustic waves

Content Provider	IEEE Xplore Digital Library
Author	Baghai-Wadji, A.R.
Copyright Year	2009
Description	Author affiliation: School of Electrical and Computer Engineering, Building 10, Level 7, 360 Swanston Street Melbourne, GPO Box 2476V, VIC 3001, Australia (Baghai-Wadji, A.R.)
Abstract	The Boundary Element Method is a versatile and powerful numerical technique which has been successfully applied to numerous problems in device modelling at various scales and frequency ranges. The underlying system of surface integrals involve (dyadic) Green's functions and their spatial derivatives which are singular with varying degree of singularity. While the singularities are as a rule integrable, sophisticated regularization techniques are required to assure reliable numerical results in terms of accuracy and robustness. In particular in the near-field region, where the observation point and the source point become critically close or even coincide, the analytical and numerical calculations may turn out to be prohibitively complicated. In this paper, utilizing a model problem, a novel technique for treating near-field problems has been presented. An easy-to-use, and conceptually clear recipe has been developed which is applicable to a myriad of modelling and simulation problems in computational engineering. The presented method enables zooming into the near-field with arbitrary degree of precision.
Starting Page	268
Ending Page	271
File Size	289571
Page Count	4
File Format	PDF
ISBN	9789810824686
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-12-14
Publisher Place	Singapore
Access Restriction	Subscribed
Rights Holder	NANYANG TECHNOLOGICAL UNIV
Subject Keyword	Polarization Fourier transforms Power engineering computing Acoustical engineering Partial differential equations Integral equations Boundary element methods Green's function methods Acoustic waves Power engineering and energy
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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