TY  - JOUR
PY  - 2010//
TI  - Thermodynamic structure of a grass fire plume
JO  - International journal of wildland fire
A1  - Clements, Craig B.
SP  - 895
EP  - 902
VL  - 19
IS  - 7
N2  - High-frequency thermocouple measurements were made during an experimental grass fire conducted during ideal weather with overcast and windy conditions. Analysis of the thermodynamic structure of the fire plume showed that a maximum plume temperature of 295.2°C was measured directly above the combustion zone. Plume heating rates were on the order of 26-45 kW m-2 and occurred in the region just above the combustion zone between 10 and 15 m above ground level and were followed by cooling of approximately -37 and -44 kW m-2. The observed cooling was caused by strong entrainment that occurred behind the fire front and plume. The rapid heating and subsequent cooling indicate that the heating caused by a fire front is limited to a small volume around the flaming front and that the rates of heat gain occur for a short duration. The short duration of plume heating is due to the fast rate of spread of the fire front and ambient wind.<p /> <p>Language: en</p>
LA  - en
SN  - 1049-8001
UR  - http://dx.doi.org/10.1071/WF09009
ID  - ref1
ER  -