Numerical simulation of wind speed impact on infrared extinction area in the aerosol diffusion

Research progress of biological extinction materials

“…It was found that under certain conditions, the deposition speed of flocculent biological particles was 50% lower than that of equal volume spherical particles, and the smoke cloud can cover an area of more than 20𝑚 2 . He Haihao et al [40] analyzed the diffusion law of aerosol under different wind speed and distribution characteristics of aerosol mass concentration, and calculated the effective infrared extinction area of aerosol. The result shows that the wind speed plays an important role in aerosol diffusion, in the 1m/s wind speed atmospheric environment, the extinction area rises with diffusing steadily and begin to decline after 30s.Li Le et al [41] studied the diffusion process of bioaerosol particles and found that the maximum concentration of aerosol particles at the reference point height decreased with time.…”