3D Flame Characterization via X-ray Computed Tomography

Abstract eng:
X-ray Computed Tomography (XCT) measurements are used to characterize a krypton-diluted methane-air Bunsen flame in three dimensions. Multiple tomographic datasets are averaged in order to reduce noise in the recorded attenuation field. Internal attenuation fields within the Bunsen cone give insight into thickening of the reaction zone as gas travels towards the top of the flame, and extraction of a thresholded isosurface via Otsu’s method allows for 3-D visualization of the flame front. Results presented here reflect encouragingly on the potential of XCT to provide powerful characterization of flame structure in three dimensions regardless of optical accessibility.

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