Microstructure-based numerical modeling of the solid-fluid coupling interaction in acoustic foams

K. Gao, J.A.W. van Dommelen, P. Göransson, M.G.D. Geers

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

In this paper, based on a representative volume element (RVE) and Slattery's averaging theorem, parameters of Biot's poroelastic equations for homogenous isotropic porous materials are obtained. According to Slattery's averaging theorem, the coupling terms, which describe the inertial effects and the viscous effects, are represented by an integral of the solid-fluid interaction force. This relation provides a new approach to obtain the parameters required in Biot's equations through a direct numerical simulation of the RVE. An example of a 2D RVE is given and simulations of sound propagation in an impedance tube with a foam are conducted using Biot's equations. It is shown that the numerical coupling mass obtained from this new approach behaves qualitatively the same as an associated phenomenological model.

Originele taal-2Engels
TitelPoromechanics V - Proceedings of the 5th Biot Conference on Poromechanics
Pagina's2123-2130
Aantal pagina's8
DOI's
StatusGepubliceerd - 2013
Evenement5th Biot Conference on Poromechanics - Vienna, Oostenrijk
Duur: 10 jul 201312 jul 2013
Congresnummer: 5
http://biot2013.conf.tuwien.ac.at/

Congres

Congres5th Biot Conference on Poromechanics
Verkorte titelBIOT 2013
LandOostenrijk
StadVienna
Periode10/07/1312/07/13
AnderFifth Biot Conference on Poromechanics
Internet adres

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Citeer dit

Gao, K., van Dommelen, J. A. W., Göransson, P., & Geers, M. G. D. (2013). Microstructure-based numerical modeling of the solid-fluid coupling interaction in acoustic foams. In Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics (blz. 2123-2130) https://doi.org/10.1061/9780784412992.250