Mean-field approximation of fractal aggregate soot in shaped beam incidence

Different kinds of fractal cluster were simulated by using the diffusion limited aggregation (DLA) model in this paper. The interaction multiple electromagnetic scattering liner equation of fractal aggregate soot was present in shaped Gaussiam beam incident case. The localized approximation method was used to calculate the beam coefficients. And the mean-field approximation method was used to simplify these kinds of equations. Numerical results were obtained and discussed.