Abstract
The fire simulation curve this paper presents is based on a curve which is proposed by Barnett in 2002. The curve is used to study the temperature change in a fire scenario in the interior of a rectangular compartment. However, it is not applicable to use in some long, limited spaces with arc boundaries, such as aircraft cabins. Some improvements and simplifications are made to the curve to solve this problem. A numerical simulation is conducted via the modified curve in a B737 fuselage during a postcrash fire. The result is compared with a fire dynamics simulator (FDS) simulation and a full-scale test undertaken by the National Aeronautics and Space Administration (NASA). The practicability and accuracy of the modified curve is proved through the relevant analysis and the main relative error analysis. The time to flashover is also predicted by the curve and the FDS simulation, respectively. Several parameters are chosen as influence factors to study their effect on the time to flashover in order to delay the occurrence of the flashover. This study may provide a technical support for the cabin fire safety design, safety management, and fire safety engineering.
Highlights
Aircraft cabin fires generally belong to one of the following three groups: ramp fires, in-flight fires, and postcrash fires [1]
Improvements and simplifications are made to the BFD curve to carry out a numerical fire simulation in a long, narrow space with an arc boundary
The temperature curves in the cabin obtained via a modified BFD curve and a fire dynamics simulator (FDS) simulation during a postcrash fire are compared with the results of a full-scale fire test undertaken by National Aeronautics and Space Administration (NASA) based on the B737 aircraft
Summary
Aircraft cabin fires generally belong to one of the following three groups: ramp fires, in-flight fires, and postcrash fires [1]. A series of full-scale fire tests have been undertaken by the Federal Aviation Administration (FAA) to study the temperature and the toxic gas conditions in postcrash fires using a C-133 fuselage. These tests addressed the postcrash scenario by considering a large external fuelpool fire adjacent to an open cabin door. All kinds of parameter models, conduct a numerical simulation of the indoor temperature based on a fire that occurs in the interior of a rectangular building, but they are not applicable for using in some limited spaces with arc boundaries, such as long, narrow tunnels and aircraft cabins. The study of the influence factors of flashover can be applied to delay the occurrence of flashover within fire scenarios
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