Energy Approach in Comparison of the Effectivness of the Staceyв's and Clayton and Engquistв's Paraxial Boundaries

Kokalanov, Vasko and Gicev, Vlado (2011) Energy Approach in Comparison of the Effectivness of the Staceyв's and Clayton and Engquistв's Paraxial Boundaries. In: Proceedings of the Eighth Conference on Informatics and Information Technology. Institute of Informatics, Faculty of Natural Sciences and Mathematics, Ss. Cyril and Methodius University in Skopje, Macedonia, Skopje, Macedonia, pp. 98-100. ISBN 978-9989-668-90-6

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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: Book Section
Subjects: International Conference on Informatics and Information Technologies > Optimization
International Conference on Informatics and Information Technologies > Signal Processing
Depositing User: Vangel Ajanovski
Date Deposited: 28 Oct 2016 00:15
Last Modified: 28 Oct 2016 00:15
URI: http://eprints.finki.ukim.mk/id/eprint/11301

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