Computational evaluation of approximate Rayleigh-Debye-Gans/fractal-aggregate theory for the absorption and scattering properties of soot

The approximate Rayleigh-Debye-Gans (RDG)/fractal-aggregate (FA) theory for the optical properties of soot aggregates is evaluated by using the models developed on the basis of the ICP algorithm. The evaluation emphasizes Guinier regime of the RDG-FA theory. The evaluation reveals that the RDG-FA theory is consistent with the numerical uncertainties model. The scattering properties and refractive indices of the soot are accurately provided by the RDG-FA theory.