| HAL-Inria | Publications, software ... of Inria's scientists |
Conference papers
A mode-matching model for the impedance of perforated plate liners
Abstract : A mode-matching model applicable to perforated liners in the linear regime is presented.It complements semi-empirical models not suitable for the high frequency regime, for linerfeaturing thick plate and micro perforated liner. The mentioned models are compared to mea-surements. From these comparisons, it appears that removing the short tube approximationis not enough to capture completely the losses in the linear regime. Further investigations havebeen carried out using a finite element method model based on compressible Linearised Navier-Stokes equations. This method showed to be in good agreement with experimental data. Thus,the dissipation due to viscosity was mapped around the aperture. This approach is supposedto provide a more precise understanding of the physical phenomenon of interest. Based onthose results, the next step is to propose an upgraded mode-matching model computationallyefficient that overtakes empirical models thanks to physical-based modeling.
Cited literature [22 references]
https://hal.inria.fr/hal-02335914
Contributor : Gilles Tissot Connect in order to contact the contributor
Submitted on : Monday, October 28, 2019 - 3:19:56 PM
Last modification on : Wednesday, April 6, 2022 - 3:48:06 PM
Long-term archiving on: : Wednesday, January 29, 2020 - 6:19:05 PM
Contributor : Gilles Tissot Connect in order to contact the contributor
Submitted on : Monday, October 28, 2019 - 3:19:56 PM
Last modification on : Wednesday, April 6, 2022 - 3:48:06 PM
Long-term archiving on: : Wednesday, January 29, 2020 - 6:19:05 PM
File
Billard-Tissot-Gabard_AIAA_201...
Files produced by the author(s)