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

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dc.contributor.authorLízal, Františekcs
dc.contributor.authorNiedoba, Pavelcs
dc.contributor.authorŠeda, Liborcs
dc.contributor.authorJedelský, Jancs
dc.contributor.authorJícha, Miroslavcs
dc.date.accessioned2017-09-22T11:48:51Z
dc.date.available2017-09-22T11:48:51Z
dc.date.issued2016-03-28cs
dc.description.abstractCorrect 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.en
dc.formattextcs
dc.format.extent1-4cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationEPJ Web of Conferences. 2016, p. 1-4.en
dc.identifier.doi10.1051/epjconf/201611402067cs
dc.identifier.issn2100-014Xcs
dc.identifier.other131201cs
dc.identifier.urihttp://hdl.handle.net/11012/70024
dc.language.isoencs
dc.publisherEDP Sciencescs
dc.relation.ispartofEPJ Web of Conferencescs
dc.relation.urihttp://www.epj-conferences.org/articles/epjconf/pdf/2016/09/epjconf_efm2016_02067.pdfcs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2100-014X/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectautomotive ventilationen
dc.subjectcomputational fluid mechanicsen
dc.subjectexperimenten
dc.subjecthot wire anemometryen
dc.titleExperimental verification of boundary conditions for numerical simulation of airflow in a benchmark ventilation channelen
dc.type.driverconferenceObjecten
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-131201en
sync.item.dbtypeVAVen
sync.item.insts2020.03.31 00:59:01en
sync.item.modts2020.03.30 22:56:37en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. EÚ-odbor termomechaniky a techniky prostředícs
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