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Microstructure-based numerical modeling of the solid-fluid coupling interaction in acoustic foams
TU Eindhoven.
TU Eindhoven.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Numerical acoustics.ORCID iD: 0000-0003-1855-5437
TU Eindhoven.
2013 (English)In: Poromechanics V - Proceedings of the 5th Biot Conference on Poromechanics, 2013, 2123-2130 p.Conference paper, Published paper (Refereed)
Abstract [en]

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.

Place, publisher, year, edition, pages
2013. 2123-2130 p.
National Category
Applied Mechanics
Identifiers
URN: urn:nbn:se:kth:diva-136771Scopus ID: 2-s2.0-84887392957OAI: oai:DiVA.org:kth-136771DiVA: diva2:677078
Conference
5th Biot Conference on Poromechanics,July 10-12 2013, Vienna/Austria
Note

QC 20140102

Available from: 2013-12-09 Created: 2013-12-09 Last updated: 2014-01-02Bibliographically approved

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fulltext(357 kB)186 downloads
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CiteExportLink to record
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Citation style
  • apa
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