Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Defining Flashover for Fire Hazard Calculations: Part II



V Babrauskas, Richard Peacock


Comparison of available correlations and predictive models used to predict the minimum energy necessary to cause flashover show consistent estimates for a range of empirical data. Still, available experimental data show a wide range of heat release rates at flashover. Additional measurement needs are suggested to facilitate better understanding of conditions prior to flashover. With analysis of both the experimental data and theoretical predictions based on available computer fire models, a significant portion of the variability can be accounted for by the time period involved in the flashover. Although typically ignored in the available correlations, qualitatively, a clear trend emerges shorter exposure times increase the needed minimum heat release rate at flashover.
Fire Safety Journal


computer models, experiments, fire hazard, fire models, flashover, heat flux, temperature correlations, validation


Babrauskas, V. and Peacock, R. (2003), Defining Flashover for Fire Hazard Calculations: Part II, Fire Safety Journal, [online], (Accessed April 18, 2024)
Created October 31, 2003, Updated October 12, 2021