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Quantitative evaluation of mass transfer near the edge of porous media by absorption photometry

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Title: Quantitative evaluation of mass transfer near the edge of porous media by absorption photometry
Authors: Tanikoshi, Taiki Browse this author
Otomo, Ryoko Browse this author
Harada, Shusaku Browse this author →KAKEN DB
Keywords: porous media
light absorption photometry
convection flow
solid-liquid interface
Rayleigh-Taylor instability
Issue Date: Feb-2017
Publisher: Wiley-Blackwell
Journal Title: AIChE journal
Volume: 63
Issue: 2
Start Page: 823
End Page: 833
Publisher DOI: 10.1002/aic.15397
Abstract: The intensive investigation of mass transfer near the entrance (edge) of porous media by quantification of the surrounding concentration field has been performed. We have adopted a noninvasive and real-time system based on light absorption photometry for measurement of the concentration field in a quasi-two dimensional cell. This system is, in principle, applicable to the measurement of various substances due to the generality of light absorption. This measurement system was applied to a simple model of the gravity-driven transport of a substance in a fluid near the edge of a porous medium in the presence of a reaction at the surface. The temporal variation of the complicated concentration field is appropriately captured with a spatial resolution of several tens of micrometers to millimeters. Quantitative analyses revealed that the geometry of the porous edge considerably affects the convection flow and invasion of substances into the medium.
Rights: This is the peer reviewed version of the following article: AIChE Journal 63(2) Feb 2017 pp.823-833, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 原田 周作

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