Numerical Study on Infrared Optical Property of Diffuse Coal Particles in Mine Fully Mechanized Working Combined with CFD Method

Table 1

Simulation results of dust particle dispersion in the direction along the tunnel.

Distance (m)	Dust dispersion degree (%)
	2 m	25 m	510 m	10 m
5	23.5	23	36.5	17
10	26	25	33.4	15.6
15	30	29	30.5	10.5
25	39.5	33.5	22.5	4.5
35	41	39.5	11	8.5
50	44.5	40	12.5	3
70	69.5	25.5	3.5	1.5
90	75	15	7.5	2.5