Numerical Simulation of Fire Growth, Transition to Flashover, and Post-Flashover Dynamics in the Dalmarnock Fire Test
نویسندگان
چکیده
منابع مشابه
Predicting Rapid Fire Growth (Flashover) Using Conditional Generative Adversarial Networks
A flashover occurs when a fire spreads very rapidly through crevices due to intense heat. Flashovers present one of the most frightening and challenging fire phenomena to those who regularly encounter them: firefighters. Firefighters’ safety and lives often depend on their ability to predict flashovers before they occur. Typical pre-flashover fire characteristics include dark smoke, high heat, ...
متن کاملOn the Equations for Flashover Fire in Small Compartments
Equations for studying flashover fire were studied experimentally in this paper. Experiments were carried out in a chamber inside a full-scale burning test hall of the joint project between The Hong Kong Polytechnic University and the University of Science and Technology of China. Three correlation equations on estimating the critical heat release rates for flashover were considered. The two-la...
متن کاملModelling of the Growth Phase of Dalmarnock Fire Test One
The challenge of modelling a well characterized full-scale fire test using computational fluid dynamics is illustrated in this work comparing a priori and a posteriori simulations. In 2006, The Dalmarnock Fire Tests were conducted in two identical 3.5 m 4.75 m 2.5 m concrete enclosures with a real residential fuel load. This data set provides measured data at the highest spatial resolution avai...
متن کاملThe Effect of Thermal Radiation on the Dynamics of Flashover in a Compartment Fire
Flashover is a phenomenon describing a room fire changed from the growth stage to the development stage. There is a rapid increase in size and intensity. The radiant heat flux back to the fuel surface and the floor of the room is known to be one of the key parameters leading to flashover. Indeed, a heat flux (largely due to radiation) of 20 kW/m to the room floor is often taken to be the condit...
متن کاملDefining flashover for fire hazard calculations: Part II
Comparison of available correlations and predictive models used to predict the minimum heat release rate (HRR) necessary to cause flashover show consistent trends for a range of empirical data. Nonetheless, available experimental data for HRR at flashover in compartments of similar geometry and venting show substantial scatter. Both the experimental data and theoretical predictions based on com...
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ژورنال
عنوان ژورنال: Fire Safety Science
سال: 2008
ISSN: 1817-4299
DOI: 10.3801/iafss.fss.9-1377