A simplified representation of travelling fire development in large compartment using CFD analyses

Marion Charlier, Olivier Vassart, Xu Dai, Stephen Welch, Johan Sjoström, Johan Anderson, Ali Nadjai

Research output: Contribution to conferencePaperpeer-review

Abstract / Description of output

Fires in open large-floor plan spaces do not always reach a post-flashover fire state and recently, the “travelling fire” terminology has been used to define fires burning locally and moving across entire floor plates over a period of time [1]. Several studies have been presented about the behavior of a structure when it is subjected to this fire scenario [2-5]. Due to their limited number, fire tests are not enough to cover all possible configurations encountered in practice, but this limitation can potentially be overcome with help of CFD. In the frame of the European RFCS TRAFIR project, a simplified representation of the fire load was developed to calibrate an FDS model representing large scale travelling fire tests. The numerical and experimental results have been compared in terms of gas and steel temperatures (the radiative intensities and gas temperatures calculated by FDS have been used by SAFIR® to calculate the temperatures in a steel column). The approach provides acceptable representations of fire spread and steel temperatures within reasonable computational demands.
Original languageEnglish
Number of pages11
Publication statusPublished - 2020
Event11th International Conference on Structures in Fire - University of Queensland, Brisbance, Australia
Duration: 30 Nov 20202 Dec 2020


Conference11th International Conference on Structures in Fire
Abbreviated titleSiF2020
Internet address

Keywords / Materials (for Non-textual outputs)

  • CFD; travelling fire; fire load; link CFD-FEM


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  • Structures in Fire 2020 - Best presentation (Runner up)

    Charlier, Marion (Recipient), Vassart, Olivier (Recipient), Dai, Xu (Recipient), Welch, Stephen (Recipient), Sjöström, Johan (Recipient), Anderson, Johan (Recipient) & Nadjai, Ali (Recipient), 2 Dec 2020

    Prize: Prize (including medals and awards)

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