An Error Estimator for the Finite Element Approximation of Plane and Cylindrical AcousticWaves

This paper deals with a Finite Element Method (FEM) for the approximation of the Helmholtz equation for two dimensional problems. The acoustic boundary conditions are weakly posed and an auxiliary problem with homogeneous boundary conditions is defined. This auxiliary approach allows for the formula...

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Bibliographic Details

Published in:	Computer modeling in engineering & sciences Vol. 106; no. 2; pp. 127 - 145
Main Authors:	Sebold, J E, Lacerda, L A, Carrer, J A M
Format:	Journal Article
Language:	English
Published:	Henderson Tech Science Press 01.01.2015
Subjects:	Approximation Boundary conditions Dispersion (wave) Errors Finite element method Grid refinement (mathematics) Helmholtz equations Mathematical analysis Mathematical models Nonlinear programming Pade approximation Parameters Parametric analysis Robustness (mathematics) Tolerances
ISSN:	1526-1492, 1526-1506
Online Access:	Get full text
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