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An algebraic subgrid scale finite element method for the convected Helmholtz equation in two dimensions with applications in aeroacoustics

Autor
Guasch, O.; Codina, R.
Tipus d'activitat
Article en revista
Revista
Computer methods in applied mechanics and engineering
Data de publicació
2007-09
Volum
196
Número
45-48
Pàgina inicial
4672
Pàgina final
4689
DOI
https://doi.org/10.1016/j.cma.2007.06.001 Obrir en finestra nova
URL
http://www.sciencedirect.com/science/article/pii/S0045782507002381 Obrir en finestra nova
Resum
An algebraic subgrid scale finite element method formally equivalent to the Galerkin Least-Squares method is presented to improve the accuracy of the Galerkin finite element solution to the two-dimensional convected Helmholtz equation. A stabilizing term has been added to the discrete weak formulation containing a stabilization parameter whose value turns to be the key for the good performance of the method. An appropriate value for this parameter has been obtained by means of a dispersion analy...
Paraules clau
Aeroacoustics, Aerodynamic sound, Convected Helmholtz equation, Convected wave equation, Subgrid scale stabilization
Grup de recerca
(MC)2 - UPC Mecànica de Medis Continus i Computacional
ANiComp - Anàlisi numèrica i computació científica

Participants