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A study of flame spread in engineered cardboard fuelbeds: Part II: Scaling law approachAuthor(s): Brittany A. Adam; Nelson K. Akafuah; Mark Finney; Jason Forthofer; Kozo Saito
Source: In: Seventh International Symposium on Scale Modeling (ISSM-7); Hirosaki, Japan; 6-9 August, 2013. International Scale Modeling Committee. 10 p.
Publication Series: Paper (invited, offered, keynote)
Station: Rocky Mountain Research Station
PDF: View PDF (680.9 KB)
DescriptionIn this second part of a two part exploration of dynamic behavior observed in wildland fires, time scales differentiating convective and radiative heat transfer is further explored. Scaling laws for the two different types of heat transfer considered: Radiation-driven fire spread, and convection-driven fire spread, which can both occur during wildland fires. A new interpretation of the inertial forces introduced a downstream, time-dependent frequency, which captures the dynamic, vortex shedding behavior of flames due to the unstable nature of the turbulent flow created in the wake of the fire. Excelsior and paper strip experiments suggest wildland fire is a falls into the convection-driven spread regime.
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CitationAdam, Brittany A.; Akafuah, Nelson K.; Finney, Mark; Forthofer, Jason; Saito, Kozo. 2013. A study of flame spread in engineered cardboard fuelbeds: Part II: Scaling law approach. In: Seventh International Symposium on Scale Modeling (ISSM-7); Hirosaki, Japan; 6-9 August, 2013. International Scale Modeling Committee. 10 p.
Keywordswildland fires, flame spread, cardboard fuelbeds
- Linking 3D spatial models of fuels and fire: Effects of spatial heterogeneity on fire behavior
- An examination of flame shape related to convection heat transfer in deep-fuel beds
- Characterization of convective heating in full scale wildland fires
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