- Author
-
Nielsen, H. J.
- Title
- Mass Fire Data Analysis. Final Report.
- Coporate
- IIT Research Inst., Chicago, IL
- Report
-
IITRI Project J6099; DASA 2018
January 1970
99 p.
- Distribution
- Available from National Technical Information Service
- Contract
- DASA-01-67-C-0004
- Keywords
-
mass fires
|
Flambeau operation
|
thermal radiation
|
weight loss
|
fuel beds
|
data analysis
- Identifiers
- fire development; fire induced wind
- Abstract
- An analysis was performed of the data obtained in large experimental fire tests conducted by the U.S. Forest Service (Operation Flambeau) Data for the speed of the fire induced wind, weight loss of the fuel load, and incident thermal radiation were compared to establish that the data are consistent. To distinguish between the basic mean flow, and the large turbulent fluctuations, data for the mean wind spped were developed by computing the average of each set of thirty consecutive measurements. The computed mean wind was then used to construct the wind pattern that exists in and around the fire. A test for the validity of the mean wind speed data was also performed by comparing the mass of air flowing across the perimeter of the fire below the altitude of 50 ft. with the mass flowing upwards at the altitude of 50 ft. Both flows are shown to be approximately equal.