Fire Safety Science Digital Archive

Detailed results of the measurements made by the United Kingdom team at the Project Flambeau test fire 760-12-67 are presented and discussed. The damage to standardised wood blocks increased from the edges of the array to a maximum about midway between the centre and the north-east corner, broadly the region where fire whirls were observed. This increase may well be due to changes in convective heat transfer over the array. Systematic differences in the damage sustained were found between blocks exposed at various positions, facing in various directions; these largely corresponded to differences in the configuration factor of the fuel pile with respect to the block. Peak wind speeds of more than 60 ft/s were registered at ground level within the array by simple 'turn-over' wind gauges. Peak temperatures in the streets exceeded 200C.