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dc.contributor.authorColella, Francesco
dc.contributor.authorRein, Guillermo
dc.contributor.authorBorchiellini, Romano
dc.contributor.authorCarvel, Ricky O
dc.contributor.authorTorero, Jose L
dc.contributor.authorVerda, Vittorio
dc.date.accessioned2009-08-17T15:35:18Z
dc.date.available2009-08-17T15:35:18Z
dc.date.issued2009-06
dc.identifier.citationF Colella, G Rein, R Borchiellini, R Carvel, JL Torero, V Verda, Calculation and Design of Tunnel Ventilation Systems using a Two-scale Modelling Approach, Building and Environment 44, pp. 2357-2367 , 2009. doi:10.1016/j.buildenv.2009.03.020en
dc.identifier.urihttp://hdl.handle.net/1842/3006
dc.descriptionResearch paper published in the journal Building and Environment in 2009. http://dx.doi.org/10.1016/j.buildenv.2009.03.020en
dc.description.abstractThis paper develops a novel modelling approach for ventilation flow in tunnels at ambient conditions (i.e. cold flow). The complexity of full CFD models of low in tunnels or the inaccuracies of simplistic assumptions are avoided by efficiently combining a simple, mono-dimensional approach to model tunnel regions where the flow is fully developed, with detailed CFD solutions where flow conditions require 3D resolution. This multiscale method has not previously been applied to tunnel flows. The low computational cost of this method is of great value when hundreds of possible ventilation scenarios need to be studied. The multi-scale approach is able to provide detailed local flow conditions, where required, with a significant reduction in the overall computational time. The coupling procedures and the numerical error induced by this new approach are studied and discussed. The paper describes a comparison between numerical results and experimental data recorded within a real tunnel underlining how the developed methodology can be used as a valid design tool for any tunnel ventilation system. This work sets the foundations for the coupling of fire-induced flows and ventilation systems where further complexities are introduced by the hot gas plume and smoke stratification.en
dc.format.extent664089 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherBuilding and Environment journal - Elservieren
dc.subjectjet fanen
dc.subjectmultiscaleen
dc.subjectCFDen
dc.subjectFluenten
dc.subject1Den
dc.subject3Den
dc.titleCalculation and design of tunnel ventilation systems using a two-scale modelling approachen
dc.typePreprinten


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