Light scattering by a spheroidal bubble with geometrical optics approximation

被引：24
作者：
He, Huiling [1 ,2 ]
Li, Wei [1 ]
Zhang, Xiaohui [1 ]
Xia, Min [1 ]
Yang, Kecheng [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Coll Optoelect Sci & Engn, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] China Three Gorges Univ, Coll Sci, Yichang 443002, Peoples R China
来源：
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER | 2012年 / 113卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Bubble; Spheroid; Light scattering; Geometrical optics approximation (GOA); NONSPHERICAL PARTICLES; RAY SCATTERING; CRITICAL ANGLE; FLOW STRUCTURE; DEBYE SERIES; AIR BUBBLE; WATER; PIV/LIF; PIV;
D O I：
10.1016/j.jqsrt.2012.03.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
This paper proposes the spheroidal model for analyzing the light scattering characteristics of an air bubble. The angular distributions of light scattered by a large spheroidal bubble with end-on incidence are calculated using geometrical optics approximation. The divergence factor, diffraction, and phase shift are considered in the computation. The MATLAB code was developed and verified using the Mie result for a spherical bubble, and the scattering patterns of the two methods agreed well. The effects on the scattering properties are analyzed in terms of the size and shape parameter of the bubble and the incident beam width. The relations between the deviation angle and incident angle, emergent light intensity, and scattering angle are analyzed and used to explain the scattering patterns of a spheroidal bubble. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1467 / 1475
页数：9
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