Benchmarks for microstructure-based modelling of sound absorbing rigid-frame porous media

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F20%3A00342025" target="_blank" >RIV/68407700:21230/20:00342025 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.jsv.2020.115441" target="_blank" >https://doi.org/10.1016/j.jsv.2020.115441</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jsv.2020.115441" target="_blank" >10.1016/j.jsv.2020.115441</a>

Result language
angličtina
Original language name
Benchmarks for microstructure-based modelling of sound absorbing rigid-frame porous media
Original language description
This work presents benchmark examples related to the modelling of sound absorbing porous media with rigid frame based on the periodic geometry of their microstructures. To this end, rigorous mathematical derivations are recalled to provide all necessary equations, useful relations, and formulae for the so-called directmulti-scale computations, as well as for the hybrid multi-scale calculations based on the numerically determined transport parameters of porous materials. The results of such direct and hybrid multi-scale calculations are not only cross verified, but also confirmed by direct numerical simulations based on the linearised Navier-Stokes-Fourier equations. In addition, relevant theoretical and numerical issues are discussed, and some practical hints are given.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10307 - Acoustics

Project
<a href="/en/project/GA18-24954S" target="_blank" >GA18-24954S: Propagation of acoustic waves through phononic materials and structures</a><br>
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

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