Mass Fire Scaling with Small Electrically Heated Models

Résumé du livre

Inflow air velocities at the edge of the models and updraft velocities in the hot air column above the models are measured with a hot wire anemometer. Air temperatures in the column are measured with chromel-alumel thermocouples. The heat release rates used in the models corresponded to the scaled down estimated rates at 5 and 18 minutes after ignition in the June 1966 Project Flambeau fire. Measurement of air velocity and temperature over the quadrant of the 4 foot model appeared to scale favorably with data from the quadrant of the 2 foot model. Scaled down inflow velocity around the June 1966 Flambeau fire and velocities and temperatures measured at elevations below 70 feet within the same fire, and temperatures recorded at the near-street-level environment across the September 1967 Flambeau fire also compared favorably with the model data at homologous points above the models.