부산대학교 도서관

The coagulation characteristics are considered when uranium aerosol produced in the vacuum smelting process of uranium metal. The particle sizes of initial aerosol are respectively 0.05um and 0.5um. The particle density (solid proportion) are respectively $1\times 10-6,5\times 10-6,1\times 10-5$ and $5\times$ 10–4. And the wind speeds with influence on the coagulation frequency of turbulent coagulation are respectively 2 m/s, 4 m/s, 6 m/s, 8 m/s, which are analyzed based on the numerical simulation method. The results show that the initial aerosol particle size, the proportion of solid and wind speed have obvious effects on the turbulent coagulation of uranium aerosol in the confined space. The proportion of peak particle size increases with the increase of wind speed, but the maximum uranium aerosol particle size decreases with the increase of wind speed. The proportion of peak particle size increases with the increase of solid proportion, and outlet particle size increases with the increase of inlet solid proportion. When the particle size of the incident aerosol particle is much larger, the peak value of particle size portion also increases correspondingly.