McGrattan, K.
, Floyd, J.
, Forney, G.
, Baum, H.
and Hostikka, S.
(2003),
Improvements to the NIST Fire Dynamics Simulator, IAFSS Symposium, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=861089
(Accessed December 1, 2024)
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Improvements to the NIST Fire Dynamics Simulator
Published
Author(s)
, , , , Simo A. Hostikka
Abstract
A new version of the NIST Fire Dynamics Simulator (FDS) was released in the fall of 2001. Improvements have been made to the combustion and radiation routines, allowing for better simulation of flashover. The combustion is based on a single transport equation for the mixture fraction with state relations that reflect the basic stoichiometry of the reaction. The radiation transport equation is solved using the Finite Volume Method, usually with the gray gas assumption for large scale simulations in which soot is the dominant emitter and absorber. To make the model work for practical fire protection engineering problems, some approximations have to be made within the new algorithms. These approximations will be discussed and sample calculations presented.Citation
IAFSS Symposium
Pub Type
Journals
Download Paper
Keywords
fire model, large eddy simulation, mixture fraction
Citation
Issues
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Created January 1, 2003, Updated June 2, 2021