Research on Simulation Methods for Forest Fire Extinguishing Using Water Mist

doi:10.16182/j.issn1004731x.joss.23-1267

Abstract

Abstract:

As a highly hazardous natural disaster, the occurrence and spread of forest fires are usually affected by a variety of complex factors such as climate, terrain, vegetation, combustible materials, etc., which makes it difficult to accurately simulate the spread and extinguishing process of forest fires. The spread of forest fires and the process of water mist fire extinguishing are physically modele. The spread model adopts a tree module structure to simulate the pyrolysis reaction of tree burning, and considers the effects of temperature, wind field,mass loss rate and other factors on the spread of tree burning.In the fire extinguishing simulation experiment using water mist, the focus is on the water film formed by the water mist penetrating the flame area and the fire extinguishing effect caused by the evaporation of water, so as to prevent the spread of forest fires, successfully realizing the simulation platform for interactive fire extinguishing, which allows users to experience the process of spreading forest fires in an immersive way, and conducting water mist fire extinguishing simulation experiments with water guns, fire trunks and drones. The results of this research are of great significance for applications in the field of fire simulation.

Key words: forest fires, water mist, physical model, tree pyrolysis, fire spread

CLC Number:

TP391.9

Xiang Bing, Dong Xiaohong, Li Yang. Research on Simulation Methods for Forest Fire Extinguishing Using Water Mist[J]. Journal of System Simulation, 2024, 36(5): 1222-1231.

Figures/Tables 9

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Table 1

Statistical data of fire extinguishing by water mist

图序号	$t / s$	$d m d t$	$T /$ $℃$	$n$	$n m i s t$
图5(a)	9	0.221	176.532	1	0
图5(b)	21	0.356	282.125	3	1
图5(c)	43	0.653	476.354	8	3
图5(d)	57	0.865	582.023	11	1
图5(e)	72	0.752	517.631	9	2
图5(f)	82	0.636	406.376	8	1
图5(g)	90	0.454	287.525	6	2
图5(h)	96	0.136	163.376	3	3

Table 1

Fig. 6

Fig. 7

Table 2

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灭火方式	灭火树木	平均灭火时间/(s/棵)	帧率/(帧/s)
细水雾水枪	11	19	75.9
消防车	9	25	72.3
无人机	8	32	74.5

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