Modeling the Breakup of Clusters Induced by Internal Repulsion

Abstract

In nanoparticles system, particles (or clusters) can aggregate into big-scale clusters, which also can break into small ones by the change of internal conditions. For this purpose, a breakup model was proposed and a JAVA program was developed to simulate the process based on the classic Cluster-Cluster Aggregation (CCA) model. In the simulation, a single cluster, which is gotten from the CCA, breaks into small ones firstly, and then these break into smaller and smaller ones sequentially abiding by specified rules. It is found that clusters present various structure under different parameters in the cube system. Meanwhile, the process visualization can be well displayed by JAVA 3D figures dynamically, and some data analysis can be performed spontaneously based on the data files recorded by the program.