Ballistic cluster–cluster aggregation model optimization

In this paper, an optimized model based on the ballistic cluster–cluster aggregation is proposed to study optical properties of aggregated particle structures. The critical improvement ability arbitrarily select original number particles in simulation and set different sizes particles, whereas limited 2n particles. Herein, discrete dipole approximation method was used calculate extinction structure. First, effect porosity, which a significant parameter, explored, acceptable error values are calculated. Second, simulations performed using for conditions applicable (N = 2n), difference between two calculations assessed. Finally, performance aggregate with arbitrary ≠ 2n) simulated by calculated compared results obtained interpolation method. numerical verify generalizability accuracy model.