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Rough capillary rise [dataset] Open Access

Capillary rise within rough structures is a wetting phenomenon that is fundamental to survival in biological organ- isms, deterioration of our built environment, and performance of numerous innovations, from 3D microfluidics to carbon capture. Here, to accurately predict rough capillary rise, we must couple two wetting phenomena: capillary rise and hemi- wicking. Experiments, simulations, and theory demonstrate how this coupling challenges our conventional understanding and intuitions of wetting and roughness. Firstly, the critical contact angle for hemiwicking becomes separation-dependent so that hemiwicking can vanish for even highly wetting liquids. Secondly, the rise heights for perfectly wetting liquids can differ between smooth and rough systems, even with the same 0◦ contact angle. Finally, the raised liquid volumes are substantially increased in rough compared to smooth systems. To explain and predict all rise heights and volumes with quantitative accuracy, we present the Dual-Rise model, that is valid for general roughness, liquids, and surface wettabilities.

Descriptions

Resource type
Dataset
Contributors
Creator: Kusumaatmaja, Halim 1
Contact person: Kusumaatmaja, Halim 1
Data collector: Panter, Jack 1
Data collector: Konicek, Andrew 2
1 Durham University
2 ExxonMobil
Funder
Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword
Capillarity
Wetting phenomena
Subject
Physics
Location
Language
Cited in
Identifier
ark:/32150/r20p096694s
doi:10.15128/r20p096694s
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

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H. Kusumaatmaja
Date Uploaded
Date Modified
31 January 2023, 12:01:19
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 16545
Last modified: 2023:01:31 06:20:45+00:00
Filename: paper_data.zip
Original checksum: 3c2c1f270af16998bda777aa76aceab3
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