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A linearized Navier-Stokes solver for the prediction of sound propagation in duct systems
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Aeroakustik. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Aeroakustik. KTH, Skolan för teknikvetenskap (SCI), Centra, VinnExcellence Center for ECO2 Vehicle design.ORCID-id: 0000-0002-9061-4174
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Strömningsakustik. KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, MWL Marcus Wallenberg Laboratoriet.ORCID-id: 0000-0003-4103-0129
2011 (engelsk)Inngår i: 40th International Congress and Exposition on Noise Control Engineering 2011 Proceedings: Volume 1, 2011, s. 248-256Konferansepaper, Publicerat paper (Annet vitenskapelig)
Abstract [en]

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.

sted, utgiver, år, opplag, sider
2011. s. 248-256
Emneord [en]
Duct acoustics, Linearized navier-stokes equations, Sound propagation
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-65773Scopus ID: 2-s2.0-84867956200OAI: oai:DiVA.org:kth-65773DiVA, id: diva2:483678
Konferanse
40th International Congress and Exposition on Noise Control Engineering 2011, INTER-NOISE 2011, Osaka, Japan, September 4-7 2011
Forskningsfinansiär
TrenOp, Transport Research Environment with Novel Perspectives
Merknad

QC 20140903

Tilgjengelig fra: 2012-01-25 Laget: 2012-01-25 Sist oppdatert: 2014-09-03bibliografisk kontrollert

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