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Proceedings Paper

Geometrical optics approximation of light scattered by large spheroidal bubble
Author(s): Huiling He; Kecheng Yang; Wei Li; Min Xia; Qing Li; Xiaohui Zhang
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Paper Abstract

The light scattering properties of bubbles are very important for exploration underwater. The shape of bubbles usually treated as spheres, are apparently nonspherical in turbulent flow. The present methods for calculating light scattered by nonspherical particles are lack of efficient computation due to the large size of bubble, where geometrical optics approximation is considered a better method for calculating light scattering patterns. In this paper, the large spheroidal bubble with end-on incidence in water are researched based on ray tracing method. The angular distribution of light scattered by prolate and oblate spheroidal bubbles are interpreted that both shapes of bubbles have strong forward and low backward scattering with rapid ripple structure. The types of ray paths permeating the bubble are calculated to explain the physical mechanisms that cause various prominent intensity features. The results could provide the theoretical foundation for optimizing the turbulent bubbly flow measurements.

Paper Details

Date Published: 17 February 2012
PDF: 9 pages
Proc. SPIE 8332, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging, 83320F (17 February 2012); doi: 10.1117/12.918757
Show Author Affiliations
Huiling He, Huazhong Univ. of Science and Technology (China)
China Three Gorges Univ. (China)
Kecheng Yang, Huazhong Univ. of Science and Technology (China)
Wei Li, Huazhong Univ. of Science and Technology (China)
Min Xia, Huazhong Univ. of Science and Technology (China)
Qing Li, Huazhong Univ. of Science and Technology (China)
Xiaohui Zhang, Huazhong Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 8332:
Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Sensing and Imaging
Pierre Galarneau; Xu Liu; Pengcheng Li, Editor(s)

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