Effect of the relative positions of vehicular blockage on the smoke flow behaviour in a scaled tunnel

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dc.authorid0000-0002-3084-1287en_US
dc.contributor.authorAltay, Merve
dc.contributor.authorSürmen, Ali
dc.date.accessioned2021-03-20T20:12:27Z
dc.date.available2021-03-20T20:12:27Z
dc.date.issued2019
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.descriptionFuels, Combustion, Engines and Fire Conference (FCE) / International Combustion Symposium (ICS) -- MAR 10-19, 2019 -- Antalya, TURKEYen_US
dc.descriptionKUCUK (ALTAY), MERVE/en_US
dc.description.abstractVentilation is an efficient method to keep the fire induced smoke dispersion under control in tunnel fires. Critical ventilation velocity (Uc), defined as the minimum longitudinal velocity to prevent smoke back flow from the fire source in tunnels, plays a vital role to provide safe conditions in the event of a tunnel fire. Although, it is one of the most remarkable and well-studied parameters for tunnel fire ventilation system design, there are some conflicts about the changing pattern of Uc and the ventilation flow characteristics in the presence of a vehicular blockage in tunnel fires between researchers. The main purposes of this study are to investigate numerically the effects of vehicular blockages, located in the upstream and downstream of the fire source, on the smoke spread and the back layering length and also to estimate the critical ventilation velocity in the presence of a vehicular blockage in tunnel fires. In addition, the review of the related studies and the elimination of the conflicts between the researchers on this issue are some important objectives of this study. Simulations of this study show that the presence of a vehicular blockage in tunnel fire cases make considerable changes on smoke flow pattern and critical ventilation velocity. Current knowledge in the related literature and this study have been assessed and some estimates have been made about the parameters leading these changes on the ventilation conditions.en_US
dc.identifier.doi10.1016/j.fuel.2019.115694en_US
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttp://doi.org/10.1016/j.fuel.2019.115694
dc.identifier.urihttps://hdl.handle.net/20.500.12885/561
dc.identifier.volume255en_US
dc.identifier.wosWOS:000479141700041en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorAltay, Merve
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofFuelen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCFDen_US
dc.subjectCritical ventilation velocityen_US
dc.subjectFDSen_US
dc.subjectTunnel fireen_US
dc.subjectVehicular blockageen_US
dc.titleEffect of the relative positions of vehicular blockage on the smoke flow behaviour in a scaled tunnelen_US
dc.typeConference Objecten_US

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