Energy approach of accuracy estimation of P3 and P4 Stacey boundaries

Kokalanov, Vasko and Gicev, Vlado (2011) Energy approach of accuracy estimation of P3 and P4 Stacey boundaries. In: CIIT 2011, 16-18 March 2011, Bitola, Macedonia.

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Abstract

The paraxial boundaries are artefacts used to simulate wave propagation out of the physical model to infinity. Their imperfection results with spurious reflection of the energy which is travelling towards the boundaries. To quantify the error due to the artificial reflection of the boundary, we compute and monitor energy emitted from the source and energy exiting the model. The analyses are done with numerical model constructed of two parts, central part and periphery formed from the boundaries. The wave motion is generated from the source located in the central part. In the vicinity of the source we chose a group of points symmetrically deployed with respect to the both axis. The sum of the energy calculated in each of those points is the energy generated from the source. In same manner using the points of the artificial boundaries we calculate the outgoing energy. By quantification of the input and outgoing energy, one can get impression of the effectiveness of the paraxial boundaries.

Item Type: Conference or Workshop Item (Speech)
Subjects: Engineering and Technology > Civil engineering
Engineering and Technology > Electrical engineering, electronic engineering, information engineering
Divisions: Faculty of Computer Science
Depositing User: Vasko Kokalanov
Date Deposited: 14 Aug 2017 10:26
Last Modified: 14 Aug 2017 10:26
URI: http://eprints.ugd.edu.mk/id/eprint/18029

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