Sound-turbulence interaction in low Mach number duct flow
2013 (English)In: 19th AIAA/CEAS Aeroacoustics Conference, American Institute of Aeronautics and Astronautics, 2013Conference paper (Other academic)
When sound waves propagate in ducts with the presence of turbulent flow, turbulent stresses can cause extra attenuation of the wave in addition to that caused by viscothermal effects. Different models for the turbulent stress acting on the sound waves are investigated in this study, and they are applied to compute the wall shear stress impedance of sound waves. Among these models the non-equilibrium model proposed by the present authors in another paper is studied in details. Attempt of including mean flow convection effect in the non-equilibrium model is made. The resulting modified model is then applied to compute the wave attenuation, and the results are compared with experimental data.
Place, publisher, year, edition, pages
American Institute of Aeronautics and Astronautics, 2013.
Fluid Mechanics and Acoustics
Research subject Järnvägsgruppen - Ljud och vibrationer
IdentifiersURN: urn:nbn:se:kth:diva-123753DOI: 10.2514/6.2013-2024ScopusID: 2-s2.0-84883690901ISBN: 978-162410213-4OAI: oai:DiVA.org:kth-123753DiVA: diva2:629742
19th AIAA/CEAS Aeroacoustics Conference; Berlin; Germany; 27 May 2013 through 29 May 2013
FunderSwedish Research Council, SDA 26211
QC 201307102013-06-172013-06-172015-05-26Bibliographically approved