Particle image velocimetry in a foam-like porous structure using refractive index matching: a method to characterize the hydrodynamic performance of porous structures
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Author(s)
Butscher, Denis
Hutter, Cédric
Kuhn, Simon
Rudolf von Rohr, Philipp
Date Issued
July 2012
Journal
Experiments in Fluids
Publisher
Springer-Verlag
Citation
Butscher, Denis, Cédric Hutter, Simon Kuhn, and Philipp Rudolf von Rohr. “Particle Image Velocimetry in a Foam-Like Porous Structure Using Refractive Index Matching: a Method to Characterize the Hydrodynamic Performance of Porous Structures.” Experiments in Fluids 53, no. 4 (July 18, 2012): 1123–1132.
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Author's final manuscript
Abstract
We present a method to measure two-dimensional velocity fields inside an artificial foam-like porous structure using particle image velocimetry and a refractive index matching technique to avoid optical distortion. The porous structure is manufactured by stereolithography with the epoxy resin WaterShed® XC 11122 as solid material, and anisole is used as refractive index-matched fluid. It was found that the direction of build-up of the stereolithographic structure plays an important role for the quality of the recorded images. The velocity fields measured in this study and the turbulent statistics derived thereof allow to characterize the hydrodynamic performance of the artificial foam-like structure and clarify the mechanisms of mixing. Results from this study compare well to results from a large eddy simulation reported by Hutter et al. (Chem Eng Sci 66:519–529, 2011b) and hence reinforce these simulations.
MIT Department
Massachusetts Institute of Technology. Department of Chemical Engineering
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1007/s00348-012-1346-9
