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Residual-based stabilization of the finite element approximation to the acoustic perturbation equations for low Mach number aeroacoustics

Author
Guasch, O.; Sánchez-Martin, P.; Pont-Ribas, A.; Baiges, J.; Codina, R.
Type of activity
Journal article
Journal
International journal for numerical methods in fluids
Date of publication
2016-12
Volume
82
Number
12
First page
839
Last page
857
DOI
https://doi.org/10.1002/fld.4243 Open in new window
Repository
http://hdl.handle.net/2117/99508 Open in new window
URL
http://onlinelibrary.wiley.com/doi/10.1002/fld.4243/abstract Open in new window
Abstract
The acoustic perturbation equations (APE) are suitable to predict aerodynamic noise in the presence of a non-uniform mean flow. As for any hybrid computational aeroacoustics approach, a first computational fluid dynamics simulation is carried out from which the mean flow characteristics and acoustic sources are obtained. In a second step, the APE are solved to get the acoustic pressure and particle velocity fields. However, resorting to the finite element method (FEM) for that purpose is not str...
Citation
Guasch, O., Sánchez-Martin, P., Pont-Ribas, A., Baiges, J., Codina, R. Residual-based stabilization of the finite element approximation to the acoustic perturbation equations for low Mach number aeroacoustics. "International journal for numerical methods in fluids", Desembre 2016, vol. 82, núm. 12, p. 839-857.
Keywords
acoustics, aeroacoustics, finite element, stabilized FEM, subsonic, variational multiscale (VMS)
Group of research
(MC)2 - UPC Computational continuum mechanics
ANiComp - Numerical analysis and scientific computation

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