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Post-Test Computations of the Virginia Tech Propane Fire Compartment Study Using FDS v2.


pdf icon Post-Test Computations of the Virginia Tech Propane Fire Compartment Study Using FDS v2. (251 K)
Floyd, J. E.; Wieczorek, C.; Vandsburger, U.

Fire Safety Science. Proceedings. Seventh (7th) International Symposium. International Association for Fire Safety Science (IAFSS). POSTER ABSTRACTS. June 16-21, 2003, Worcester, MA, Intl. Assoc. for Fire Safety Science, Boston, MA, Evans, D. D., Editor(s), 1183-1183 pp, 2003.

Keywords:

fire research; computational fluid dynamics; compartments; compartment fires; propane; validation

Abstract:

Recently, version 2 of the NIST Fire Dynamics Simulator (FDS v2) was released. A number of major changes were made to version 1 including new combustion and radiation sub-models. These features were added to improve the simulations of flashover, but they require validation against experimental data. The Virginia Tech (VT) Fire Research Laboratory is currently undertaking a study of compartment fires3 using a half-scale ISO 9705 compartment. Fires studied in this compartment span a wide range of heat release rates, thus providing an excellent set of data with which to validate the new sub-models. FDS v2 was used to simulate 8 tests in the VT compartment. Comparisons to experimental data were made. The comparisons indicate the new submodels perform well for flashed over compartments. Major species, mass flows, and temperatures are all reasonably predicted. However, predictions of minor species and mass flow rates for well-ventilated tests indicate that further refinement of the new submodels is needed.