Linked simulation for fire-exposed elements using CFD and thermo-mechanical models

Šulc, Stanislav; Šmilauer, Vít; Patzák, B.; Cábová, Kamila; Wald, František

doi:10.1016/j.advengsoft.2019.02.007

Cited by 12 publications

(4 citation statements)

References 8 publications

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“…The heat transfer to the structure from the fire compartment/furnace can be modelled by fluid dynamic analysis, FDS, more precisely than the analytical step-by-step model. Horizontal virtual furnace model was validated at CTU in Prague (Šulc et al. , 2019).…”

Section: Virtual Furnace Testsmentioning

confidence: 99%

Emissivity of hot-dip galvanized surfaces in future development of EN 1993-1-2

Der

Raszková

Wald

et al. 2022

JSFE

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PurposeThis study aims to propose a new design value, based on experimental and numerical studies, for surface emissivity of zinc hot-dip galvanized members exposed to fire.Design/methodology/approachThe paper sums up experiments, used specimens and also shows results. Four experiments were performed in a horizontal furnace and one test in a fire compartment of the experimental building. Several tests were carried out for determination of the surface emissivity of galvanized steel structures in fire. The experimental and numerical studies were used for preparation of new generation of the structural steel fire standard Eurocode EN 1993-1-2:2025.FindingsHot-dip galvanizing is one of the most widely used processes for corrosion protection of steel products. The new design value for surface emissivity of zinc hot-dip galvanized members exposed to fire is determined using experimental results as 0.35. The value is proposed for next generation of EN 1993-1-2:2025. If hot-dip galvanization additionally can contribute beneficially to the fire resistance of unprotected steel members, it would be a huge economic advantage.Originality/valueExperimental studies in the past years have indicated the influence of hot-dip galvanizing on the heating of steel members. This study suggests 50% reduction of the surface emissivity of a carbon steel member. This amendment will be incorporated in future versions of Eurocodes 3 and 4 and has already been implemented in some fire design tools for steel members in order to consider the beneficial contribution of hot-dip galvanized for fire-resistance requirements of less than 60 min.

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Section: Virtual Furnace Testsmentioning

confidence: 99%

Emissivity of hot-dip galvanized surfaces in future development of EN 1993-1-2

Der

Raszková

Wald

et al. 2022

JSFE

Self Cite

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“…The target of these tests was to provide a basic model of the airflow in the recirculation region between the building model and the barrier. The impact of wind on indoor airflow behaviour and smoke movement were modelled using CFD simulations in the work of Šulc et al, Franke et al, Barsim et al and Assunta et al [61][62][63][64][65]. This research has resulted in more effective fire action plans in the case of an incident.…”

Section: Fire-wind Interaction Effects On Low-rise Buildingmentioning

confidence: 99%

Existing Improvements in Simulation of Fire–Wind Interaction and Its Effects on Structures

Ghodrat

Shakeriaski

Nelson

et al. 2021

Fire

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This work provides a detailed overview of existing investigations into the fire–wind interaction phenomena. Specifically, it considers: the fanning effect of wind, wind direction and slope angle, and the impact of wind on fire modelling, and the relevant analysis (numerical and experimental) techniques are evaluated. Recently, the impact of fire on buildings has been widely analysed. Most studies paid attention to fire damage evaluation of structures as well as structure fire safety engineering, while the disturbance interactions that influence structures have been neglected in prior studies and must be analysed in greater detail. In this review article, evidence regarding the fire–wind interaction is discussed. The effect of a fire transitioning from a wildfire to a wildland–urban interface (WUI) is also investigated, with a focus on the impact of the resulting fire–wind phenomenon on high- and low-rise buildings.

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“…The thermal properties and movement of air can be considered in heat transfer by Computational Fluid Dynamics (CFD) and the CFD simulation has been applied in many temperature field calculation of concrete (Sulc et al, 2019;Sun and Xie, 2019). Swanson and Hobbs (2014) chose the CFD model to simulate the temperature distribution of concrete pavements under the effect of solar radiation.…”

Section: Hydration Heatmentioning

confidence: 99%