Skip to Main Content
Evaluating crown fire rate of spread predictions from physics-based modelsAuthor(s): C. M. Hoffman; J. Ziegler; J. Canfield; R. R. Linn; W. Mell; C. H. Sieg; F. Pimont
Source: Fire Technology. doi: 10.1007/s10694-015-0500-3.
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
Download Publication (583.55 KB)
DescriptionModeling the behavior of crown fires is challenging due to the complex set of coupled processes that drive the characteristics of a spreading wildfire and the large range of spatial and temporal scales over which these processes occur. Detailed physics-based modeling approaches such as FIRETEC and the Wildland Urban Interface Fire Dynamics Simulator (WFDS) simulate fire behavior using computational fluid dynamics based methods to numerically solve the three-dimensional, time dependent, model equations that govern, to some approximation, the component physical processes and their interactions that drive fire behavior. Both of these models have had limited evaluation and have not been assessed for predicting crown fire behavior. In this paper, we utilized a published set of field-scale measured crown fire rate of spread (ROS) data to provide a coarse assessment of crown fire ROS predictions from previously published studies that have utilized WFDS or FIRETEC. Overall, 86% of all simulated ROS values using WFDS or FIRETEC fell within the 95% prediction interval of the empirical data, which was above the goal of 75% for dynamic ecological modeling. However, scarcity of available empirical data is a bottleneck for further assessment of model performance.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHoffman, C. M.; Ziegler, J.; Canfield, J.; Linn, R. R.; Mell, W.; Sieg, C. H.; Pimont, F. 2015. Evaluating crown fire rate of spread predictions from physics-based models. Fire Technology. doi: 10.1007/s10694-015-0500-3.
Keywordsphysics-based model, fire behavior, HIGRAD/FIRETEC, Wildland Urban Interface Fire Dynamics Simulator, WFDS
- Reply to Cruz and Alexander: Comments on “Evaluating Crown Fire Rate of Spread Predictions from Physics-Based Models"
- Fire and Smoke Model Evaluation Experiment (FASMEE): Modeling gaps and data needs
- Examination of WFDS in modeling spreading fires in a furniture calorimeter
XML: View XML