Tomographic reconstruction of asymmetric soot structure from multi-angular scanning |
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Authors: | Lee S M Hwang J Y Chung S H |
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Institution: | (1) Dept. of Geosciences, The Pennsylvania State University, University Park, PA 16802, USA |
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Abstract: | A tomographic deconvolution technique using the Fourier transformation has been applied for the reconstruction of asymmetric
soot structure. Local soot volume fraction distribution can be identified from line-of-sight integrated data using light extinction
measurements with multi-angular scanning. A peak-following interpolation technique was adopted to effectively increase the
number of scanning angles. The results showed that the peak-following interpolation has improved the accuracy of reconstruction
compared to the arithmetic interpolation in determining the local soot volume fraction. The measurement from a laser-induced
incandescence technique substantiated the validity of the reconstruction technique. |
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