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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

File Details

Depositor

H. Kusumaatmaja

Date Uploaded

31 January 2023, 06:01:38

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