TY - JOUR PY - 2009// TI - Round-robin study of a priori modelling predictions of the Dalmarnock Fire Test One JO - Fire safety journal A1 - Rein, Guillermo A1 - Torero, Jose L. A1 - Jahn, Wolfram A1 - Stern-Gottfried, Jamie A1 - Ryder, Noah L. A1 - Desanghere, Sylvain A1 - Lazaro, Montserrat A1 - Mowrer, Frederick W. A1 - Coles, Andrew A1 - Joyeux, Daniel A1 - Alvear, Daniel A1 - Capote, Jorge A. A1 - Jowsey, A. A1 - Abecassis-Empis, Cecilia A1 - Reszka, Pedro SP - 590 EP - 602 VL - 44 IS - 4 N2 - An international study of fire modelling was conducted prior to the Dalmarnock Fire Test One in order to assess the state-of-the-art of fire simulations using a round-robin approach. This test forms part of the Dalmarnock Fire Tests, a series of experiments conducted in 2006 in a high-rise building. The philosophy behind the tests was to provide measurements in a realistic fire scenario involving multiple fuel packages and non-trivial fire growth, and with an instrumentation density suitable for comparison with computational fluid dynamics models. Each of the seven round-robin teams independently simulated the test scenario a priori using a common detailed description of the compartment geometry, fuel packages, ignition source and ventilation conditions. The aim of the exercise was to forecast the fire development as accurately as possible and compare the results. The aim was not to provide an engineering analysis with conservative assumptions or safety factors. Comparison of the modelling results shows a large scatter and considerable disparity among the predictions, and between predictions and experimental measurements. The scatter of the simulations is much larger than the error and variability expected in the experiments. The study emphasises on the inherent difficulty of modelling fire dynamics in complex fire scenarios like Dalmarnock, and shows that the accuracy to predict fire growth (i.e. evolution of the heat released rate) is, in general, poor. Keywords: Fire modelling; Blind; Forecast; CFD; FDS; Validation

LA - SN - 0379-7112 UR - http://dx.doi.org/10.1016/j.firesaf.2008.12.008 ID - ref1 ER -