Air Permeability of Thick Foams: Flow Numerical Simulations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46709002%3A_____%2F18%3AN0000021" target="_blank" >RIV/46709002:_____/18:N0000021 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.21013/jte.v10.n3.p2" target="_blank" >http://dx.doi.org/10.21013/jte.v10.n3.p2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.21013/jte.v10.n3.p2" target="_blank" >10.21013/jte.v10.n3.p2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Air Permeability of Thick Foams: Flow Numerical Simulations

Popis výsledku v původním jazyce

From measured data are determined permeability parameters of thick perforated foam samples, used as car seats cushions. Parameters are used for numerical flow simulations in foam samples. Model of detailed geometry gives good view about detailed flow field (pressure and velocity) in foam volume, influenced by perforations and grooves. However, simulated flow is several times different from measured one. The main flow is through perforations (99%) and flow through foam is of two orders lower. Using homogenous geometry with “averaged” permeability parameters, evaluated from measured values, the coincidence of measured and simulated flow is very good, difference of 1-5%. However, it is not possible to get any details of flow in foam volume. Using inlet layer, the flow is decreasing, first in perforations and the ratio between perforation and foam flows is more balanced.

Název v anglickém jazyce

Air Permeability of Thick Foams: Flow Numerical Simulations

Popis výsledku anglicky

From measured data are determined permeability parameters of thick perforated foam samples, used as car seats cushions. Parameters are used for numerical flow simulations in foam samples. Model of detailed geometry gives good view about detailed flow field (pressure and velocity) in foam volume, influenced by perforations and grooves. However, simulated flow is several times different from measured one. The main flow is through perforations (99%) and flow through foam is of two orders lower. Using homogenous geometry with “averaged” permeability parameters, evaluated from measured values, the coincidence of measured and simulated flow is very good, difference of 1-5%. However, it is not possible to get any details of flow in foam volume. Using inlet layer, the flow is decreasing, first in perforations and the ratio between perforation and foam flows is more balanced.

Druh

J_ost - Ostatní články v recenzovaných periodicích

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1213" target="_blank" >LO1213: Excelentní Strojírenský Výzkum</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

IRA-International Journal of Technology & Engineering

ISSN

2455-4480

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

IN - Indická republika

Počet stran výsledku

14

Strana od-do

41-54

Kód UT WoS článku

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EID výsledku v databázi Scopus

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