This paper explores the use of inverse boundary element method to identify aeroacoustic noise sources. In the proposed approach, sound pressure at a few locations out of the flow field is measured, followed by the reconstruction of acoustic particle velocity on the surface where the noise is generated. Using this reconstructed acoustic particle velocity, the acoustic response anywhere in the field, including in the flow field, can be predicted. This approach is advantageous since only a small number of measurement points are needed and can be done outside of the flow field, and a relatively fast computational time. As an example, a prediction of vortex shedding noise from a circular cylinder is presented.
Identification of AeroAcoustic Noise Sources Using Inverse Boundary Element Method
Sae Technical Papers
SAE 2005 Noise and Vibration Conference and Exhibition ; 2005
2005-05-16
Aufsatz (Konferenz)
Englisch
Aeroacoustic Boundary Element Method Using Analytical-Numerical Matching
Online Contents | 1997
|Aeroacoustic Noise Source Identification Using Acoustical Holography
SAE Technical Papers | 2005
|