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


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
Aantal pagina's8
StatusGepubliceerd - 2013
Evenement5th Biot Conference on Poromechanics - Vienna, Oostenrijk
Duur: 10 jul 201312 jul 2013
Congresnummer: 5


Congres5th Biot Conference on Poromechanics
Verkorte titelBIOT 2013
AnderFifth Biot Conference on Poromechanics
Internet adres

Vingerafdruk Duik in de onderzoeksthema's van 'Microstructure-based numerical modeling of the solid-fluid coupling interaction in acoustic foams'. Samen vormen ze een unieke vingerafdruk.

Citeer dit