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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Vydané v:	Computer modeling in engineering & sciences Ročník 106; číslo 2; s. 127 - 145
Hlavní autori:	Sebold, J E, Lacerda, L A, Carrer, J A M
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Henderson Tech Science Press 01.01.2015
Predmet:	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
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