Two-scale numerical simulation of acoustic transmission in interaction with flow

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F22%3A43966251" target="_blank" >RIV/49777513:23520/22:43966251 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11025/50375" target="_blank" >http://hdl.handle.net/11025/50375</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Two-scale numerical simulation of acoustic transmission in interaction with flow

Popis výsledku v původním jazyce

The numerical solution of the acoustic transmission on perforated interface interacting with flow consists of two steps in each of which subproblems defined on a microscopic periodic unit cell and in a macroscopic waveguide are solved. The first step involves calculation of the potential flow that is treated in a similar way to the subsequent acoustic problem. The homogenized acoustic coefficients and acoustic pressure distribution in the macroscopic waveguide are calculated in the second step for the known flow velocity. The two-scale problems are solved numerically in Sfepy which is a Python-based package for multiscale and multiphysics finite element simulations.

Název v anglickém jazyce

Two-scale numerical simulation of acoustic transmission in interaction with flow

Popis výsledku anglicky

The numerical solution of the acoustic transmission on perforated interface interacting with flow consists of two steps in each of which subproblems defined on a microscopic periodic unit cell and in a macroscopic waveguide are solved. The first step involves calculation of the potential flow that is treated in a similar way to the subsequent acoustic problem. The homogenized acoustic coefficients and acoustic pressure distribution in the macroscopic waveguide are calculated in the second step for the known flow velocity. The two-scale problems are solved numerically in Sfepy which is a Python-based package for multiscale and multiphysics finite element simulations.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20302 - Applied mechanics

Projekt

<a href="/cs/project/GA21-16406S" target="_blank" >GA21-16406S: Nelineární akustika a transportní procesy v porézních periodických strukturách</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2022

Kód důvěrnosti údajů

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