Simulation on Temperature Variation Characteristics of Airbus 380 Double-Deck Cabin Under Fire Condition

Abstract

In order to study the temperature change characteristics of Airbus 380 double-deck cabin in case of sudden fire, a three-dimensional cabin model is built at a 1:1 scale, and the fire temperature propagation process is simulated using Pyrosim software. It is found that the temperature at the front and rear seats of the cabin depends on the distance from the bulkhead at both ends, and the temperature at the middle position of the cabin mainly depends on the distance from the fire source. On the section of upper cabin z=4.1 m, the temperature change at the cabin tail starts first, and the temperature change at the cabin tail is local diffusion, while the temperature change at the cabin head is large diffusion at the beginning. The temperature changes at three altitudes in the upper cabin are generally the same at different times. The temperature at the stern of the cabin at z=3.1 m and z=3.5 m is higher than that at other positions, with the highest values of 296.5 K and 297.6 K respectively. The temperature at the head and stern of the cabin at z=4.1 m is higher than that at other positions.