Characterizing Positive Pressure Ventilation Using Computational Fluid Dynamics

Report Date: February 2003

Positive Pressure Ventilation (PPV) is used both to improve conditions during fire attack or after the extinguishment of a fire. It has proven to be a useful tool if used properly, but if used improperly it can worsen conditions and injure or kill firefighters and civilians. Data from two sets of full-scale experiments are compared with computational fluid dynamic model simulations with the Fire Dynamic Simulator.


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  • National Institute of Standards and Technology

    The NIST Fire Research Division develops, verifies, and utilizes measurements and predictive methods to quantify the behavior of fire and means to reduce the impact of fire on people, property, and the environment. This work involves integration of laboratory measurements, verified methods of prediction, and large-scale fire experiments to demonstrate the use and value of the research products.

    Through its programs in measurement, prediction, systems integration, and the dynamics of fire and its interactions with the built and natural environment, the division provides leadership for advancing the theory and practice of fire safety engineering, fire fighting, fire investigation, fire testing, fire data management, and intentional burning.

Kerber, Stephen and William Walton. Characterizing Positive Pressure Ventilation using Computational Fluid Dynamics. Gaithersburg, MD: National Institute for Standards and Technology, 2003. NISTIR 7065, Print.

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