Abstract
The evolution of flame height and horizontal extending distance of the facade with atypical openings (circular and triangular) under external sideward wind is experimentally studied with a reduced-scale compartment model in this paper. The results show that: When the external sideward wind is high and reaches a certain degree, the flame horizontal extending distance will be greater than the flame height, indicating that the flame will be more likely to ignite adjacent rooms on the same floor in this case. (1) The flame height of circular and triangular openings has a linear relationship with sideward wind speed (Uw); (2) The flame horizontal extending distance of circular and triangular opening is nonlinear to the sideward wind speed (Uw); (3) Based on previous studies, a non-dimensional correlation model is constructed to predict the flame height and horizontal extending distance of circular and triangular openings.
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