Implementation aspects of the Boundary Element Method including viscous and thermal losses

Vicente Cutanda Henriquez, Peter Møller Juhl

Publikation: Kapitel i bog/rapport/konference-proceedingKonferencebidrag i proceedingsForskningpeer review

Abstrakt

The implementation of viscous and thermal losses using the Boundary Element Method (BEM) is based on the Kirchhoff’s dispersion relation and has been tested in previous work using analytical test cases and comparison with measurements. Numerical methods that can simulate sound fields in fluids including losses are particularly interesting whenever small cavities and narrow passages are present, as is the case with many acoustic devices such as transducers and small audio appliances.
The present paper describes current work aimed at improving the method by addressing some specific issues related with mesh definition, geometrical singularities and treatment of closed cavities. These issues are specific of the BEM with losses. Using examples, some strategies are presented that can alleviate shortcomings and improve performance.
OriginalsprogEngelsk
TitelProceedings of 43rd International Congress on Noise Control Engineering : Internoise 2014
RedaktørerJohn Davy, Charles Don, Terry McMinn, Liz Dowsett, Norm Broner, Marion Burgess
Antal sider8
UdgivelsesstedMelbourne, Australia
ForlagThe Australian Acoustical Society
Publikationsdato16. nov. 2014
Artikelnummer858
ISBN (Elektronisk)978-0-909882-04-4
StatusUdgivet - 16. nov. 2014
Begivenhedinter.noise 2014: 43rd International Congress on Noise Control Engineering - Melbourne, Australien
Varighed: 16. nov. 201419. nov. 2014
Konferencens nummer: 43

Konference

Konferenceinter.noise 2014
Nummer43
LandAustralien
ByMelbourne
Periode16/11/201419/11/2014

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