Direct collocation meshless method for vector radiative transfer in scattering media

被引：3

作者：

Ben, Xun ^{[1
]}

Yi, Hong-Liang ^{[1
]}

Yin, Xun-Bo ^{[2
]}

Tan, He-Ping ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Energy Sci & Engn, 92 West Dazhi St, Harbin 150001, Peoples R China

[2] Harbin Inst Technol, Dept Math, Sch Sci, Harbin 150001, Peoples R China

来源：

JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2015年 / 163卷

基金：

中国国家自然科学基金;

关键词：

Radiative transfer; Polarization; Meshless method; Direct collocation; Multiple scattering; MONTE-CARLO SIMULATIONS; TRANSFER EQUATION; COUPLED ATMOSPHERE; DISCRETE ORDINATE; TRANSFER MODEL; POLARIZATION; TRANSPORT; ORDER;

D O I：

10.1016/j.jqsrt.2015.05.001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A direct collocation meshless method based on a moving least-squares approximation is presented to solve polarized radiative transfer in scattering media. Contrasted with methods such as the finite volume and finite element methods that rely on mesh structures (e.g. elements, faces and sides), meshless methods utilize an approximation space based only on the scattered nodes, and no predefined nodal connectivity is required. Several classical cases are examined to verify the numerical performance of the method, including polarized radiative transfer in atmospheric aerosols and clouds with phase functions that are highly elongated in the forward direction. Numerical results show that the collocation meshless method is accurate, flexible and effective in solving one-dimensional polarized radiative transfer in scattering media. Finally, a two-dimensional case of polarized radiative transfer is investigated and analyzed. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：50 / 62

页数：13

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