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Evaluation of tortuosity models for open porous foams
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
2008 (English)Article in journal (Other academic) Submitted
Place, publisher, year, edition, pages
2008.
Keyword [en]
open porous foam, tortuosity, strut shape, permeability
National Category
Fluid Mechanics and Acoustics
Identifiers
URN: urn:nbn:se:kth:diva-8733OAI: oai:DiVA.org:kth-8733DiVA: diva2:14134
Note
QS 20120314Available from: 2008-06-11 Created: 2008-06-11 Last updated: 2012-03-14Bibliographically approved
In thesis
1. Predicting and optimising acoustical and vibrational performance of open porous foams
Open this publication in new window or tab >>Predicting and optimising acoustical and vibrational performance of open porous foams
2008 (English)Licentiate thesis, comprehensive summary (Other scientific)
Abstract [en]

This thesis concerns the modelling of acoustical and vibrational properties of open cell porous foams in multi-layered structures, especially multi-layered panels. The object is to enable optimisation of the microscopic geometry of the foam with respect to macroscopic quantities such as sound pressure level, surface velocity, total mass or cost. The developed method is based on numerical solutions to Biot's equations were scaling laws has been used to connect the microscopic geometry of the foam to macroscopic properties such as density, flow resistivity and characteristic length. Efforts have also been made to establish a scaling law for tortuosity that allows for adaptation to different strut shapes.

Place, publisher, year, edition, pages
Stockholm: KTH, 2008. 16 p.
Series
Trita-AVE, ISSN 1651-7660 ; 2008:37
Keyword
porous material, foam, Biot, optimisation, tortuosity, permeability
National Category
Fluid Mechanics and Acoustics
Identifiers
urn:nbn:se:kth:diva-4820 (URN)978-91-7415-013-1 (ISBN)
Presentation
2008-06-12, Sal D3, KTH, Lindstedtsvägen 5, Stockholm, 14:00
Opponent
Supervisors
Note
QC 20101117Available from: 2008-06-11 Created: 2008-06-11 Last updated: 2010-11-17Bibliographically approved

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  • apa
  • harvard1
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  • Other locale
More languages
Output format
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