Radiative characteristics of nonspherical particles based on a particle superposition model

Abstract

[1] A particle superposition model combined with a Monte Carlo ray tracing method, which is used to study the radiative characteristics of large nonspherical particles, is proposed. The goal of the model is to provide a new approach that not only allows the modeling of large irregular particles of arbitrary shape but also possesses a clear and systematic basic structure that is easy to program. A detailed flow chart and algorithm description are provided in the paper. The data characteristics of four types of irregular particles were calculated and analyzed. The comparison showed that this particle superposition model can be used to calculate the radiative properties of large irregular particles with good accuracy, while at the same time remaining general and extendable to many applications, thus providing a new way to study nonspherical particles.

Optical Properties of Black Carbon Aerosols with Different Coating Models

“…The particle superposition model we proposed in the previous work can be simulate irregular particles with complex geometries. This model was applied to large irregular particles [44], roughness particles [45], sintered aggregates with n The particle superposition model we proposed in the previous work can be used to simulate irregular particles with complex geometries. This model was applied to create large irregular particles [44], roughness particles [45], sintered aggregates with necking-ball structures [32], and porous particles [46].…”

“…This model was applied to large irregular particles [44], roughness particles [45], sintered aggregates with n The particle superposition model we proposed in the previous work can be used to simulate irregular particles with complex geometries. This model was applied to create large irregular particles [44], roughness particles [45], sintered aggregates with necking-ball structures [32], and porous particles [46]. Based on the particle superposition model, we develop the general inhomogeneous particle superposition model.…”