Numerical Simulation of Diffusion Regularity of CO in Fire Smoldering Phase in Aircraft Cabin

doi:10.16182/j.issn1004731x.joss.201703006

Abstract

Abstract: In order to study the impact of the cabin air conditioning supply velocity on CO diffusing in the fire smoldering phase and the effect of the transportation of CO to human body, a simulation model of A320 aircraft cabin was established, and velocity field and CO concentration field under the different air supply velocity were simulated based on the fluid dynamics control equations. The relationship between the air conditioning supply velocity and the value of CO concentration as well as the diffusion area was obtained by the analysis of the transportation of CO in different directions. The drainage efficiency on human respiratory position under different air supply velocity was calculated, and the relationship of the drainage efficiency and air supply velocity was obtained. The results of numerical simulation provide a basis for CO diffusion regularity in aircraft cabin fire smoldering phase and the study of CO toxicity.

Key words: CFD, A320 aircraft cabin, numerical simulation, CO diffusion

CLC Number:

V245.3

Lin Jiaquan, Wang Ruiting, Pi Jun, Ma Min, Yang Jianzhong. Numerical Simulation of Diffusion Regularity of CO in Fire Smoldering Phase in Aircraft Cabin[J]. Journal of System Simulation, 2017, 29(3): 509-515.

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