Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit

The error estimates obtained for solving Laplace's boundary value problem on polygons by the block-grid method contain constants that are difficult to calculate accurately. Therefore, the experimental analysis of the method could be essential. The real characteristics of the block-grid method f...

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Main Author: S. Cival Buranay
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2013/948564
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author S. Cival Buranay
author_facet S. Cival Buranay
author_sort S. Cival Buranay
collection DOAJ
description The error estimates obtained for solving Laplace's boundary value problem on polygons by the block-grid method contain constants that are difficult to calculate accurately. Therefore, the experimental analysis of the method could be essential. The real characteristics of the block-grid method for solving Laplace's equation on polygons with a slit are analysed by experimental investigations. The numerical results obtained show that the order of convergence of the approximate solution is the same as in the case of a smooth solution. To illustrate the singular behaviour around the singular point, the shape of the highly accurate approximate solution and the figures of its partial derivatives up to second order are given in the “singular” part of the domain. Finally a highly accurate formula is given to calculate the stress intensity factor, which is an important quantity in fracture mechanics.
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spelling doaj-art-69d4b09b1a2a4dc2a5be15cb358973e32025-08-20T02:23:56ZengWileyAbstract and Applied Analysis1085-33751687-04092013-01-01201310.1155/2013/948564948564Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a SlitS. Cival Buranay0Department of Mathematics, Eastern Mediterranean University, Gazimagusa, Cyprus, 095 Mersin 10, TurkeyThe error estimates obtained for solving Laplace's boundary value problem on polygons by the block-grid method contain constants that are difficult to calculate accurately. Therefore, the experimental analysis of the method could be essential. The real characteristics of the block-grid method for solving Laplace's equation on polygons with a slit are analysed by experimental investigations. The numerical results obtained show that the order of convergence of the approximate solution is the same as in the case of a smooth solution. To illustrate the singular behaviour around the singular point, the shape of the highly accurate approximate solution and the figures of its partial derivatives up to second order are given in the “singular” part of the domain. Finally a highly accurate formula is given to calculate the stress intensity factor, which is an important quantity in fracture mechanics.http://dx.doi.org/10.1155/2013/948564
spellingShingle S. Cival Buranay
Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
Abstract and Applied Analysis
title Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
title_full Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
title_fullStr Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
title_full_unstemmed Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
title_short Analysis of the Block-Grid Method for the Solution of Laplace's Equation on Polygons with a Slit
title_sort analysis of the block grid method for the solution of laplace s equation on polygons with a slit
url http://dx.doi.org/10.1155/2013/948564
work_keys_str_mv AT scivalburanay analysisoftheblockgridmethodforthesolutionoflaplacesequationonpolygonswithaslit