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Proceedings Paper

Four-dimensional visualization of a small-scale flame based on deflection tomography
Author(s): Bin Zhang; Zhigang Liu; Minmin Zhao
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Paper Abstract

Optical computed tomography is an important technique in the visualization and diagnosis of various flow fields. A small-scale diffusion flame was visualized using deflection tomography. A projection sampling system was proposed for deflection tomography to obtain deflectograms with a pair of gratings. Wave-front retrieval was employed for processing the deflectograms to obtain the deflection angles of the rays. This two-dimensional data extraction method expanded the application of deflection tomography and was suitable for the projection extraction of small-scale combustion. Deflection angle revision reconstruction algorithm was used to reconstruct the temperature distributions in 10 cross sections for each deflectogram in different instants. The flow structure was reconstructed using a visualization toolkit equipped with the marching cube and ray casting algorithms. The performed experiments demonstrated the three-dimensional dynamic visualization of temperature distributions and the flame structures of small-scale diffusion combustion.

Paper Details

Date Published: 4 November 2016
PDF: 7 pages
Proc. SPIE 10026, Real-time Photonic Measurements, Data Management, and Processing II, 100260N (4 November 2016); doi: 10.1117/12.2246539
Show Author Affiliations
Bin Zhang, Qingdao Univ. of Science and Technology (China)
Zhigang Liu, Qingdao Univ. of Science and Technology (China)
Minmin Zhao, Qingdao Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 10026:
Real-time Photonic Measurements, Data Management, and Processing II
Ming Li; Bahram Jalali; Keisuke Goda; Kevin K. Tsia, Editor(s)

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