Software pro výpočet homogenizovaných koeficientů akustické transmise na perforovaných rozhraních pro 2D úlohy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F07%3A00000055" target="_blank" >RIV/49777513:23640/07:00000055 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Software for computing homogenized coefficients of acoustic transmission on perforated interfaces for 2D problems

Popis výsledku v původním jazyce

The software serves homogenized transmission conditions imposed on the interface plane separating two halfspaces occupied by the acoustic medium. The conditions are obtained as the two-scale homogenization limit of the standard acoustic problem imposed in the layer perforated by a sieve-like obstacle with periodic structure. Both the characteristic scale of the perforations and the layer thickness are parametrized by a small parameter tending to 0. The limit model involving some homogenized coefficientsgoverns the interface discontinuity of the acoustic pressure associated with the two halfspaces and the magnitude of the transverse acoustic velocity. This novel approach allows for treatment of complicated designs of perforations and presents an alternative to the usual description of the acoustic impedance, which relies on a rough averaging the quasi-experimental data.

Název v anglickém jazyce

Software for computing homogenized coefficients of acoustic transmission on perforated interfaces for 2D problems

Popis výsledku anglicky

The software serves homogenized transmission conditions imposed on the interface plane separating two halfspaces occupied by the acoustic medium. The conditions are obtained as the two-scale homogenization limit of the standard acoustic problem imposed in the layer perforated by a sieve-like obstacle with periodic structure. Both the characteristic scale of the perforations and the layer thickness are parametrized by a small parameter tending to 0. The limit model involving some homogenized coefficientsgoverns the interface discontinuity of the acoustic pressure associated with the two halfspaces and the magnitude of the transverse acoustic velocity. This novel approach allows for treatment of complicated designs of perforations and presents an alternative to the usual description of the acoustic impedance, which relies on a rough averaging the quasi-experimental data.

Druh

X - Nezařazeno

CEP obor

BI - Akustika a kmity

OECD FORD obor

—

Projekt

—

Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2007

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů