Abstract
Purpose
– The purpose of this paper is to discuss the light scattering of nonspherical particles that is very important for the research on the aerosol optical properties.
Design/methodology/approach
– In this paper, the authors use the spheroid model as the characteristic particle shape to study the single scattering albedo of real nonspherical particles. Meanwhile, the extinction and scattering cross section of spheroids are calculated with the T matrix method combined with the improved geometric optics approximation method (IGOM).
Findings
– Through this combination, the extinction and scattering cross section of spheroids can be obtained in the larger size range and aspect ratio range. Furthermore, the comparison of the single scattering albedo for the spheroids and their equivalent spheres is conducted in order to investigate the difference of the spherical and nonspherical particles.
Originality/value
– Simulation experiments indicate that the single scattering albedo of spheroids can be calculated well with this combination, and it has some obvious influence on the variation of the aspect ratio, incident wavelength, and complex refractive index of spheroid particles.
Subject
Applied Mathematics,Computer Science Applications,Mechanical Engineering,Mechanics of Materials
Reference15 articles.
1. Alberto, M.
and
Warren, J.W.
(1986), “Scattering from nonspherical Chebyshev particles. 1:cross sections, single-scattering albedo, asymmetry factor, and backscattered fraction”, Applied Optics, Vol. 25 No. 7, pp. 1235-1244.
2. Alexander, M.
,
Yuri, K.J.C.C.
and
Warren, J.W.
(2012), “On spectral invariance of single scattering albedo for water droplets and ice crystals at weakly absorbing wavelengths”, Journal of Quantitative Spectroscopy & Radiative Transfer, Vol. 13 No. 9, pp. 715-720.
3. Anthony, J.B.
and
Stephan, H.
(2000), “Comparison of electromagnetic theory and various approximations for computing the absorption efficiency and single-scattering albedo of hexagonal columns”, Applied Optics, Vol. 39 No. 30, pp. 5560-5568.
4. Gan, F.J.
,
Lin, J.Z.
and
Yu, M.Z.
(2010), “Particle size distribution in a planar jet flow undergoing shear-induced coagulation and breakage”, Journal of Hydrodynamics, Vol. 122 No. 4, pp. 445-455.
5. Hansen, G.B.
(2009), “Calculation of single-scattering albedos: comparison of Mie results with Hapke approximations”, Icarus, Vol. 203, pp. 672-676.
Cited by
9 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献