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Erschienen in:
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2024 | OriginalPaper | Buchkapitel

17. CFD Modelling of Tunnel Fires

verfasst von : Haukur Ingason, Ying Zhen Li, Anders Lönnermark

Erschienen in: Tunnel Fire Dynamics

Verlag: Springer International Publishing

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Abstract

Computational fluid dynamics (CFD) modelling has been widely used for performance-based tunnel fire safety design in engineering applications. A CFD tool divides a computation domain into a large number of small cells and solves a set of differential equations with sub-models using different solution algorithms. The CFD users need to not only efficiently use CFD tools but also understand the embedded mechanisms. The basics of CFD modelling are introduced including controlling equations, different turbulence models and numerical methods. Sub-models important for tunnel fires are then described, i.e. gas phase combustion models, condensed phase pyrolysis models, fire suppression models, wall functions and heat transfer models. Despite the rapid development and completeness of these models related to fire phenomena, many limitations exist which should be always kept in mind by the users. Recommendations for CFD modelling of tunnel fires are presented.

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Vorheriges Kapitel Fire Suppression and Detection in Tunnels
Nächstes Kapitel Scaling Technique
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Metadaten
Titel
CFD Modelling of Tunnel Fires
verfasst von
Haukur Ingason
Ying Zhen Li
Anders Lönnermark
Copyright-Jahr
2024
Buch
Tunnel Fire Dynamics

Print ISBN: 978-3-031-53922-0

Electronic ISBN: 978-3-031-53923-7

Copyright-Jahr: 2024

DOI
https://doi.org/10.1007/978-3-031-53923-7_17