scholarly journals Benchmarks for microstructure-based modelling of sound absorbing rigid-frame porous media

2020 ◽  
Vol 483 ◽  
pp. 115441 ◽  
Author(s):  
Tomasz G. Zieliński ◽  
Rodolfo Venegas ◽  
Camille Perrot ◽  
Milan Červenka ◽  
Fabien Chevillotte ◽  
...  
Keyword(s):  
Porous Media ◽  
Rigid Frame

Reproducibility experiments on measuring acoustical properties of rigid-frame porous media (round-robin tests)

2007 ◽  
Vol 122 (1) ◽  
pp. 345-353 ◽  
Author(s):  
Kirill V. Horoshenkov ◽  
Amir Khan ◽  
François-Xavier Bécot ◽  
Luc Jaouen ◽  
Franck Sgard ◽  
...  
Keyword(s):  
Porous Media ◽  
Round Robin ◽  
Acoustical Properties ◽  
Rigid Frame

Time-domain equations for sound propagation in rigid-frame porous media (L)

2004 ◽  
Vol 116 (4) ◽  
pp. 1889-1892 ◽  
Author(s):  
D. Keith Wilson ◽  
Vladimir E. Ostashev ◽  
Sandra L. Collier
Keyword(s):  
Porous Media ◽  
Time Domain ◽  
Sound Propagation ◽  
Rigid Frame

scholarly journals Validity of the One-Dimensional Limp Model for Porous Media

10.14311/1017 ◽  
2008 ◽  
Vol 48 (3) ◽  
Author(s):  
O. Doutres ◽  
N. Dauchez ◽  
J.-M. Genevaux ◽  
O. Dazel
Keyword(s):  
Porous Media ◽  
Porous Materials ◽  
Material Properties ◽  
Analytical Modeling ◽  
Fluid Model ◽  
Biot Model ◽  
One Dimensional ◽  
Rigid Frame ◽  
The One ◽  
Frame Stiffness

A straightforward criterion for determining the validity ofthe limp model validity for porous materials is addressed here. The limp model is an “equivalent fluid” model which gives a better description of porous behavior than the well known “rigid frame” model. It is derived from the poroelastic Biot model, assuming that the frame has no bulk stiffness. A criterion is proposed for identifying the porous materials for which the limp model can be used. It relies on a new parameter, the Frame Stiffness Influence FSI, based on porous material properties. The critical values of FSI under which the limp model can be used are determined using 1D analytical modeling for a specific boundary set: radiation of a vibrating plate covered by a porous layer. 

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