A stabilized finite element method for the mixed wave equation in an ALE framework with application to diphthong production
Visualitza/Obre
Cita com:
hdl:2117/103002
Tipus de documentArticle
Data publicació2016-01
Condicions d'accésAccés obert
Tots els drets reservats. Aquesta obra està protegida pels drets de propietat intel·lectual i
industrial corresponents. Sense perjudici de les exempcions legals existents, queda prohibida la seva
reproducció, distribució, comunicació pública o transformació sense l'autorització del titular dels drets
Abstract
Working with the wave equation in mixed rather than irreducible form allows one to directly account for both, the acoustic pressure field and the acoustic particle velocity field. Indeed, this becomes the natural option in many problems, such as those involving waves propagating in moving domains, because the equations can easily be set in an arbitrary Lagrangian-Eulerian (ALE) frame of reference. Yet, when attempting a standard Galerkin finite element solution (FEM) for them, it turns out that an inf-sup compatibility constraint has to be satisfied, which prevents from using equal interpolations for the approximated acoustic pressure and velocity fields. In this work it is proposed to resort to a subgrid scale stabilization strategy to circumvent this condition and thus facilitate code implementation. As a possible application, we address the generation of diphthongs in voice production.
Descripció
The archived file is not the final published version of the article.
© (2016) S. Hirzel Verlag/European Acoustics Association
The definitive publisher-authenticated version is available online at http://www.ingentaconnect.com/contentone/dav/aaua/2016/00000102/00000001/art00012
Readers must contact the publisher for reprint or permission to use the material in any form.
CitacióGuasch, O., Arnela, M., Codina, R., Espinoza, H. A stabilized finite element method for the mixed wave equation in an ALE framework with application to diphthong production. "Acta Acustica united with Acustica", Gener 2016, vol. 102, núm. 1, p. 94-106.
ISSN1610-1928
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
19828584.pdf | 1,298Mb | Visualitza/Obre |