Simulation of the acoustics behind a wall due to a moving vehicle
(2006) 12th AIAA/CEAS Aeroacoustics Conference 3. p.1960-1971- Abstract
- The influence of a barrier on the acoustic field is investigated using an expansion of the compressible Navier-Stokes equations. Large Eddy Simulations (LES) is used to account for the acoustical sources and the equation for the acoustic density fluctuation accounts for the propagation of the acoustics waves. This combined approach enhances numerical efficiency while maintaining good accuracy. The problem under consideration is related to the spreading of noise due to a moving vehicle and the effects of a noise barrier on the Sound Pressure Level (SPL) and spectral composition. These parameters are computed for several configurations of the barrier in terms of height and distance from the vehicle. The main results show that there can be... (More)
- The influence of a barrier on the acoustic field is investigated using an expansion of the compressible Navier-Stokes equations. Large Eddy Simulations (LES) is used to account for the acoustical sources and the equation for the acoustic density fluctuation accounts for the propagation of the acoustics waves. This combined approach enhances numerical efficiency while maintaining good accuracy. The problem under consideration is related to the spreading of noise due to a moving vehicle and the effects of a noise barrier on the Sound Pressure Level (SPL) and spectral composition. These parameters are computed for several configurations of the barrier in terms of height and distance from the vehicle. The main results show that there can be acoustic modes in resonance between the barrier and vehicle and that barrier height has an effect on SPL that is intuitive. Copyright (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/616899
- author
- Åberg, Magnus LU ; Szász, Robert-Zoltán LU and Fuchs, Laszlo LU
- organization
- publishing date
- 2006
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Sound Pressure Level (SPL), Large Eddy Simulations (LES), Acoustic density fluctuation, Noise barrier
- host publication
- Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference
- volume
- 3
- pages
- 1960 - 1971
- publisher
- American Institute of Aeronautics and Astronautics
- conference name
- 12th AIAA/CEAS Aeroacoustics Conference
- conference location
- Cambridge, MA, United States
- conference dates
- 2006-05-08 - 2006-05-10
- external identifiers
-
- scopus:33845632838
- ISBN
- 1563478099
- language
- English
- LU publication?
- yes
- id
- e6c64320-7b1f-4b63-be91-d51a27ad3221 (old id 616899)
- alternative location
- http://www.aiaa.org/agenda.cfm?lumeetingid=1268&dateget=09-May-06#session6113
- date added to LUP
- 2016-04-04 12:06:08
- date last changed
- 2022-01-29 22:57:56
@inproceedings{e6c64320-7b1f-4b63-be91-d51a27ad3221, abstract = {{The influence of a barrier on the acoustic field is investigated using an expansion of the compressible Navier-Stokes equations. Large Eddy Simulations (LES) is used to account for the acoustical sources and the equation for the acoustic density fluctuation accounts for the propagation of the acoustics waves. This combined approach enhances numerical efficiency while maintaining good accuracy. The problem under consideration is related to the spreading of noise due to a moving vehicle and the effects of a noise barrier on the Sound Pressure Level (SPL) and spectral composition. These parameters are computed for several configurations of the barrier in terms of height and distance from the vehicle. The main results show that there can be acoustic modes in resonance between the barrier and vehicle and that barrier height has an effect on SPL that is intuitive. Copyright}}, author = {{Åberg, Magnus and Szász, Robert-Zoltán and Fuchs, Laszlo}}, booktitle = {{Collection of Technical Papers - 12th AIAA/CEAS Aeroacoustics Conference}}, isbn = {{1563478099}}, keywords = {{Sound Pressure Level (SPL); Large Eddy Simulations (LES); Acoustic density fluctuation; Noise barrier}}, language = {{eng}}, pages = {{1960--1971}}, publisher = {{American Institute of Aeronautics and Astronautics}}, title = {{Simulation of the acoustics behind a wall due to a moving vehicle}}, url = {{http://www.aiaa.org/agenda.cfm?lumeetingid=1268&dateget=09-May-06#session6113}}, volume = {{3}}, year = {{2006}}, }