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  Impact of spatially correlated pore-scale heterogeneity on drying porous media

Borgmann, O., Fantinel, P., Lühder, W., Goehring, L., & Holtzman, R. (2017). Impact of spatially correlated pore-scale heterogeneity on drying porous media. Water Resources Research, 53(7), 5645-5658. doi:10.1002/2016WR020260.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-DFEF-F Version Permalink: http://hdl.handle.net/21.11116/0000-0001-2F42-1
Genre: Journal Article

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 Creators:
Borgmann, Oshri, Author
Fantinel, Paolo1, Author              
Lühder, Wieland1, Author              
Goehring, Lucas1, Author              
Holtzman, Ran, Author
Affiliations:
1Group Pattern formation in the geosciences, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2063304              

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 Abstract: We study the effect of spatially-correlated heterogeneity on isothermal drying of porous media.We combine a minimal pore-scale model with microfluidic experiments with the same pore geometry. Our simulated drying behavior compares favorably with experiments, considering the large sensitivity of the emergent behavior to the uncertainty associated with even small manufacturing errors. We show that increasing the correlation length in particle sizes promotes preferential drying of clusters of large pores, pro-longing liquid connectivity and surface wetness and thus higher drying rates for longer periods. Our findings improve our quantitative understanding of how pore-scale heterogeneity impacts drying, which plays a role in a wide range of processes ranging from fuel cells to curing of paints and cements to global budgets of energy, water and solutes in soils.

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Language(s): eng - English
 Dates: 2017-06-162017-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1002/2016WR020260
 Degree: -

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Title: Water Resources Research
Source Genre: Journal
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Pages: - Volume / Issue: 53 (7) Sequence Number: - Start / End Page: 5645 - 5658 Identifier: ISSN: 0043-1397