Acoustic waves in homogenized fluid-saturated deforming periodic scaffolds under permanent flow

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F20%3A43960232" target="_blank" >RIV/49777513:23520/20:43960232 - isvavai.cz</a>
Result on the web
<a href="https://www.easdprocedia.org/conferences/easd-conferences/eurodyn-2020/9044" target="_blank" >https://www.easdprocedia.org/conferences/easd-conferences/eurodyn-2020/9044</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.47964/1120.9044.19404" target="_blank" >10.47964/1120.9044.19404</a>

Result language
angličtina
Original language name
Acoustic waves in homogenized fluid-saturated deforming periodic scaffolds under permanent flow
Original language description
Acoustic waves in a poroelastic medium with periodic structure are studied with respect to permanent seepage flow which modifies the wave propagation. The homogenization method provides the macroscopic equations governing the dynamic response of an effective medium. whose the properties are determined by the characteristic responses. We consider a Newtonian slightly compressible fluid under the barotropic acoustic approximation. In contrast with usual simplifications, the advection phenomenon of the Navier-Stokes equations is accounted for. The homogenization results are based on the periodic unfolding method combined with the asymptotic expansion technique. The dynamic permeability depends on the fluid flow properties including the advection effects associated with an assumed stationary perfusion of the porous structure. Numerical results show influence of the advection velocity on the strong dispersion of the quasi-shear modes
Czech name
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Czech description
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the International Conference on Structural Dynamic , EURODYN
ISBN
978-618-85072-0-3
ISSN
2311-9020
e-ISSN
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Number of pages
16
Pages from-to
562-577
Publisher name
European Association for Structural Dynamics
Place of publication
Athens
Event location
Řecko
Event date
Nov 23, 2020
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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