Quantitative Evaluation of the Phase Function Effects on Light Scattering and Radiative Transfer in Dispersed Systems

The light scattering properties of particles play important roles in radiative transfer many dispersed systems, such as turbid atmosphere, ocean water, nanofluids, composite coatings and so on. As one the property parameters, phase functions are strongly dependent on particle size, size distribution, morphology, well complex refractive indices surrounding media. For sake simplicity, empirical function models widely used practical applications. In this work, we focus problem systems composed spherical particles, give quantitative analyses impact process. We fit four different types using previously proposed models, including Henyey–Greenstein (HG) model, Cornette Shanks (CS) Reynold McCormick (RM) model two-term Reynolds–McCormick (TTRM) model. By comparing characteristics (i.e., hemispherical reflectance, transmittance total absorptance) layers calculated Monte Carlo method, relative errors caused by systematically investigated. results demonstrate that HG, CS RM cause obvious calculation reflectance cases. Meanwhile, induced show no regularity, but related to layer optical thickness. Due good fitting effect both forward backward directions, TTRM provides significantly higher performances all considered cases than single-term parametrizations. Moreover, for sizes thicknesses, very small, especially case polydisperse particles. Our can be guide design, analysis optimization optics photonics