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Verification and Validation of CFAST, A Model of Fire Growth and Smoke Spread



Walter W. Jones, Richard D. Peacock, Glenn P. Forney, Paul A. Reneke


CFAST is a zone model capable of predicting the environment in a multi-compartment structure subjected to a fire. It calculates the time evolving distribution of smoke and fire gases and the temperature throughout a building during a user-specified fire. This report describes the equations which constitute the model, the physical basis for these equations, data which are used by the model, and details of the operation of the computer program implementing the model.This paper is an assessment of the model following the template set forth in ASTM 1355, Standard Guide for Evaluating the Predictive Capability of Deterministic Fire Models. We include in this paper a set of comparisons between the model and a range of real-scale fire experiments is presented as the validation exercise require by the standard. In addition, we have developed a means to do a quantitative comparison between the time series represented by these predictions and those found in experiments.
NIST Interagency/Internal Report (NISTIR) - 7080
Report Number


assessment, computer models, fire models, hazard assessment, validation, verification


Jones, W. , Peacock, R. , Forney, G. and Reneke, P. (2017), Verification and Validation of CFAST, A Model of Fire Growth and Smoke Spread, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD (Accessed April 22, 2024)
Created February 19, 2017