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001049980 0247_ $$2datacite_doi$$a10.34734/FZJ-2025-05694
001049980 037__ $$aFZJ-2025-05694
001049980 041__ $$aEnglish
001049980 1001_ $$0P:(DE-HGF)0$$aCalderón, I.$$b0
001049980 1112_ $$a11th International Seminar on Fire and Explosion Hazards$$cRome$$d2025-06-15 - 2025-06-20$$gISFEH 11$$wItaly
001049980 245__ $$aInfluence of compartment geometry on internal flows in a fully-developed fire
001049980 260__ $$c2025
001049980 300__ $$a11
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001049980 520__ $$aContemporary architecture and new structural materials challenge the classical premise of fire safety: compartmentalisation. The historical classification between Regime I and Regime II is no longer sufficient to analyse the new fire behaviours we are encountering. This article presents an analysis of the impact of geometry on the development of flows in a compartment fire. The study contrasts the case of an almost cubic compartment with one that doubles its depth, using a CFD model. The model is validated using data from an experiment, where temperature fields were measured, and from which the flow fields are subsequently derived. Through computational models, the impact of the backwall effect on the magnitude and direction of velocities is observed. This effect increases velocity magnitudes by 35% and alters the flow direction. This article analyses the case of a cubic compartment and one with double the depth, examining how this variation affects flow development. The analysis was conducted using FDS simulations, validation the model with experimental data. Streamline plots reveal that in cubic compartments, the buoyancy of the flame does not directly influence the change in flow direction; instead, it is primarily due to the collision with the rear wall. Conversely, in the elongated case the fluid dynamics are significantly affected by the buoyancy of the fire plume, which deflects it toward the ceiling.
001049980 536__ $$0G:(DE-HGF)POF4-5111$$a5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511)$$cPOF4-511$$fPOF IV$$x0
001049980 7001_ $$0P:(DE-HGF)0$$aMajdalani, A. H.$$b1
001049980 7001_ $$0P:(DE-Juel1)132044$$aArnold, Lukas$$b2$$eCorresponding author
001049980 7001_ $$0P:(DE-HGF)0$$aJahn, W.$$b3
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001049980 9141_ $$y2025
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