Interzonal air and moisture transport through large horizontal openings in a full-scale two-story test-hut: Part 2-CFD study

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dc.contributor.authorVera, S.
dc.contributor.authorFazio, P.
dc.contributor.authorRao, J.
dc.date.accessioned2024-01-10T13:49:38Z
dc.date.available2024-01-10T13:49:38Z
dc.date.issued2010
dc.description.abstractThe aim of this paper is to study the air and moisture transport through a large horizontal opening in a full-scale two-story test-hut with mixed ventilation by means of computational fluid dynamics (CFD) simulations. CFD allows extending the experimental study presented in the companion paper [1] and overcoming some limitations of experimental data. More than 80 cases were simulated for conditions similar to those tested experimentally and for additional ventilation rates and temperature difference between the two rooms. CFD simulations were performed in Airpak and the indoor zero-equation turbulence model was used. The CFD model was extensively validated with the distributions of air speed, temperature and humidity ratio measured across the two rooms, as well as with the measured interzonal mass airflows through the horizontal opening. CFD simulation results show that temperature difference between the two rooms and ventilation rate strongly influence the interzonal mass airflows through the opening when the upper room is colder than the lower room, while warm convective air currents from the baseboard heater and from the moisture source placed in the lower room cause upward mass airflows when the upper room is warmer than the lower room. Finally, empirical relationships between the upward mass airflow and the temperature difference between the two rooms are developed. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.funderNatural Science and Engineering Council of Canada (NSERC)
dc.fechaingreso.objetodigital21-03-2024
dc.format.extent10 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.buildenv.2009.07.021
dc.identifier.issn0360-1323
dc.identifier.urihttps://doi.org/10.1016/j.buildenv.2009.07.021
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79468
dc.identifier.wosidWOS:000272307700013
dc.information.autorucIngeniería;Vera S;S/I;1659
dc.issue.numero3
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final631
dc.pagina.inicio622
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.revistaBUILDING AND ENVIRONMENT
dc.rightsacceso restringido
dc.subjectHorizontal opening
dc.subjectCFD
dc.subjectIndoor zero-equation model
dc.subjectInterzonal moisture flows
dc.subjectInterzonal airflows
dc.subjectVentilation rate
dc.subjectFLOW
dc.subjectCFD
dc.subjectPREDICTION
dc.subjectTURBULENCE
dc.subjectMODEL
dc.subject.ods13 Climate Action
dc.subject.odspa13 Acción por el clima
dc.titleInterzonal air and moisture transport through large horizontal openings in a full-scale two-story test-hut: Part 2-CFD study
dc.typeartículo
dc.volumen45
sipa.codpersvinculados1659
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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