A linearized Navier-Stokes solver for the prediction of sound propagation in duct systems
2011 (English)In: 40th International Congress and Exposition on Noise Control Engineering 2011 Proceedings: Volume 1, 2011, 248-256 p.Conference paper (Other academic)
This paper is aimed at the development of simulation methodologies suitable both as industrial tools for the prediction of the acoustic performance of flow duct systems, as well as for analyzing the governing mechanisms of duct aeroacoustics.. A frequency-domain linearized Navier-Stokes equations methodology has been developed to simulate sound propagation and acoustic scattering in flow duct systems. The performance of the method has been validated to experimental data and analytical solutions for several cases of in-duct area expansions and orifice plates at different flow speeds. Good agreement has generally been found, suggesting that the proposed methodology is suitable for analyzing internal aeroacoustics.
Place, publisher, year, edition, pages
2011. 248-256 p.
Duct acoustics, Linearized navier-stokes equations, Sound propagation
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-65773ScopusID: 2-s2.0-84867956200OAI: oai:DiVA.org:kth-65773DiVA: diva2:483678
40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011, Osaka, Japan, September 4-7 2011
FunderTrenOp, Transport Research Environment with Novel Perspectives
QC 201409032012-01-252012-01-252014-09-03Bibliographically approved