Relating flame radiation to home ignition using modeling and experimental crown fires
Document Type: Journal Article
Author(s): Jack D. Cohen
Publication Year: 2004

Cataloging Information

  • black spruce
  • Canada
  • crown fire
  • ICFME - International Crown Fire Modeling Experiment
  • jack pine
  • Northwest Territories
  • Picea mariana
  • Pinus banksiana
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Record Maintained By:
Record Last Modified: August 17, 2020
FRAMES Record Number: 3798


Wildland-urban fire destruction depends on homes igniting and thus requires an examination of the ignition requirements. A physical-theoretical model, based on severe case conditions and ideal heat transfer characteristics, estimated wood wall ignition occurrence from flame radiation heating and piloted ignition requirements. Crown fire experiments provided an opportunity for assessing model reliability. The crown fire experiments were specifically instrumented with wood wall sections and heat flux sensors to investigate direct flame heating leading to home ignition during wildland fires. The experimental results indicated that the flame radiation model overestimated the structure-to-flame distance that would result in wood wall ignition. Wall sections that ignited during the experimental crown fires did not sustain flaming after crown fire burnout. The experiments also revealed that the forest canopy attenuated the flame radiation as the crown fire spread within the forest plot. Ignition modeling and the associated crown fire experiments described the flame-to-structure distance scale associated with flame heating related to wall ignition.

Online Link(s):
Cohen, Jack D. 2004. Relating flame radiation to home ignition using modeling and experimental crown fires. Canadian Journal of Forest Research 34(8):1616-1626.

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