Multiphase mixing quantification by computational homology and imaging analysis

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Abstract

The purpose of this study is to introduce a new technique for quantifying the efficiency of multiphase mixing. This technique based on algebraic topology is illustrated by using the hydraulic modeling of gas agitated reactors stirred by top lance gas injection and image analysis. The zeroth Betti numbers are used to estimate the numbers of pieces in the patterns, leading to a useful parameter to characterize the mixture homogeneity. The first Betti numbers are introduced to characterize the nonhomogeneity of the mixture. The mixing efficiency can be characterized by the Betti numbers for binary images of the patterns. This novel method may be applied for studying a variety of multiphase mixing problems in which multiphase components or tracers are visually distinguishable. © 2010 Elsevier Inc.

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Xu, J., Wang, H., & Fang, H. (2011). Multiphase mixing quantification by computational homology and imaging analysis. Applied Mathematical Modelling, 35(5), 2160–2171. https://doi.org/10.1016/j.apm.2010.11.028

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