Author(s)

Juan Tan, Lin Teng

Corresponding Author

Juan Tan

Abstract

Basing on analyzing the principle of real coagulation reaction and studying the mechanism of growth of flocculation, to write programs of DLA (short for "Diffusion-Limited Aggregation") model in the MATLAB platform, and using high-performance computer to display processes of the Brownian motion, collision and coagulation of particles visually, thus obtaining fractal simulated flocculation. In addition, introducing fractal dimension and porosity to characterize morphological structure of flocculation, and quantitatively studied the effects of DLA model main parameters on microstructure of flocculation through method of statistical analysis, that is to impact on values of fractal dimension and porosity specifically, the differences of forming mechanism and fractal structural characteristics of two dimensional and three dimensional simulated flocculation was also discussed to supplement some theory research for problems of observing and analyzing real three dimensional flocculation, which were still can't be solved so far.

Keywords

Coagulation, DLA model, Fractal dimension