Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Simulations of a liner cell using a frequency-domain linearized Navier-Stokes methodology
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg. KTH, Skolan för teknikvetenskap (SCI), Centra, Linné Flow Center, FLOW.ORCID-id: 0000-0002-9061-4174
University of Cambridge, Department of Engineering, United Kingdom.
2013 (Engelska)Ingår i: 19th AIAA/CEAS Aeroacoustics Conference, 2013Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

We present numerical simulations of a liner concept, where a thin layer of metallic foam material is located in between the perforated plate and the backing cavity. This liner concept was first presented in Ref 1, where experimental tests showed that the acoustic characteristics of such a liner are nearly independent of both flow and temperature. We use the linearized Navier-Stokes equations in frequency domain to simulate the acoustic waves and the coupling to the hydrodynamic field in the main duct and the liner neck. The effect of the metallic foam is modeled using the Delany-Bazley model. The numerical results are in good agreement with the experimental results presented in Ref 1. In addition, a parameter study on the influence of the flow resistivity of the metallic foam, mean flow speed and mean flow temperature is performed.

Ort, förlag, år, upplaga, sidor
2013.
Nyckelord [en]
Acoustic characteristic, Delany-Bazley models, Frequency domains, Hydrodynamic field, Linearized Navier-Stokes, Linearized navier-stokes equations, Numerical results, Parameter studies
Nationell ämneskategori
Teknik och teknologier
Identifikatorer
URN: urn:nbn:se:kth:diva-133272Scopus ID: 2-s2.0-84883670821ISBN: 978-162410213-4 (tryckt)OAI: oai:DiVA.org:kth-133272DiVA, id: diva2:660682
Konferens
19th AIAA/CEAS Aeroacoustics Conference; Berlin; Germany; 27 May 2013 through 29 May 2013
Anmärkning

QC 20131030

Tillgänglig från: 2013-10-30 Skapad: 2013-10-29 Senast uppdaterad: 2016-09-29Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Scopus

Personposter BETA

Efraimsson, Gunilla

Sök vidare i DiVA

Av författaren/redaktören
Kierkegaard, AxelEfraimsson, Gunilla
Av organisationen
Farkost och flygLinné Flow Center, FLOW
Teknik och teknologier

Sök vidare utanför DiVA

GoogleGoogle Scholar

isbn
urn-nbn

Altmetricpoäng

isbn
urn-nbn
Totalt: 152 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf