Abstract: The influence of different particle aggregation mechanism models on the particle aggregation process of turbulence aggregation device was studied. Aggregation kernel was defined based on the UDF function of FLUENT; the influence of inter-particle repulsive potential energy barrier Umax on the aggregation rate was considered and capture efficiency f（α） was introduced for the correction of aggregation kernel; then corrected turbulence aggregation model was obtained and compared with the traditional turbulence aggregation model. Numerical simulation of particle aggregation was carried out through population balance model（PBM） coupled with CFD. According to the results, the comparison between ideal turbulence aggregation model, corrected turbulence aggregation model and the experimental results show that the ideal turbulence aggregation model has an error of approximately 8% and the corrected turbulence aggregation model has an error of only 3% and coincides with the experimental results. Brownian aggregation obviously reduces the particles less than 2μm in diameter and cannot be ignored in turbulence aggregation. The coupled corrected turbulence aggregation and Brownian aggregation model basically coincide with the experimental results.