Experimental verification of boundary conditions for numerical simulation of airflow in a benchmark ventilation channel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F16%3APU121781" target="_blank" >RIV/00216305:26210/16:PU121781 - isvavai.cz</a>

Result on the web

<a href="http://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02067.pdf" target="_blank" >http://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02067.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/epjconf/201611402067" target="_blank" >10.1051/epjconf/201611402067</a>

Result language

angličtina

Original language name

Experimental verification of boundary conditions for numerical simulation of airflow in a benchmark ventilation channel

Original language description

Correct definition of boundary conditions is crucial for the appropriate simulation of a flow. It is a common practice that simulation of sufficiently long upstream entrance section is performed instead of experimental investigation of the actual conditions at the boundary of the examined area, in the case that the measurement is either impossible or extremely demanding. We focused on the case of a benchmark channel with ventilation outlet, which models a regular automotive ventilation system. At first, measurements of air velocity and turbulence intensity were performed at the boundary of the examined area, i.e. in the rectangular channel 272.5 mm upstream the ventilation outlet. Then, the experimentally acquired results were compared with results obtained by numerical simulation of further upstream entrance section defined according to generally approved theoretical suggestions. The comparison showed that despite the simple geometry and general agreement of average axial velocity, certain difference was found in the shape of the velocity profile. The difference was attributed to the simplifications of the numerical model and the isotropic turbulence assumption of the used turbulence model. The appropriate recommendations were stated for the future work.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20704 - Energy and fuels

Project

<a href="/en/project/LO1202" target="_blank" >LO1202: NETME CENTRE PLUS</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2016

Confidentiality

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

Article name in the collection

EPJ Web of conferences

ISBN

—

ISSN

2100-014X

e-ISSN

—

Number of pages

4

Pages from-to

1-4

Publisher name

EDP Sciences

Place of publication

Neuveden

Event location

Praha

Event date

Nov 17, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000400395300069