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Maximizing friction by liquid flow clogging in confinement

In the nanoscale regime, flow behaviors for liquids show qualitative deviations from bulk expectations. In this work, we reveal by molecular dynamics simulations that plug flow down to nanoscale induces molecular friction that leads to a new flow structure due to the molecular clogging of the encage...

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Autores principales: Chen, Shan, Guo, Zhenjiang, Zhang, Hongguang, Pagonabarraga, Ignacio, Zhang, Xianren
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9276620/
https://www.ncbi.nlm.nih.gov/pubmed/35819524
http://dx.doi.org/10.1140/epje/s10189-022-00208-z
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author Chen, Shan
Guo, Zhenjiang
Zhang, Hongguang
Pagonabarraga, Ignacio
Zhang, Xianren
author_facet Chen, Shan
Guo, Zhenjiang
Zhang, Hongguang
Pagonabarraga, Ignacio
Zhang, Xianren
author_sort Chen, Shan
collection PubMed
description In the nanoscale regime, flow behaviors for liquids show qualitative deviations from bulk expectations. In this work, we reveal by molecular dynamics simulations that plug flow down to nanoscale induces molecular friction that leads to a new flow structure due to the molecular clogging of the encaged liquid. This plug-like nanoscale liquid flow shows several features differ from the macroscopic plug flow and Poiseuille flow: It leads to enhanced liquid/solid friction, producing a friction of several order of magnitude larger than that of Couette flow; the friction enhancement is sensitively dependent of the liquid column length and the wettability of the solid substrates; it leads to the local compaction of liquid molecules that may induce solidification phenomenon for a long liquid column. GRAPHICAL ABSTRACT: [Image: see text]
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spelling pubmed-92766202022-07-14 Maximizing friction by liquid flow clogging in confinement Chen, Shan Guo, Zhenjiang Zhang, Hongguang Pagonabarraga, Ignacio Zhang, Xianren Eur Phys J E Soft Matter Regular Article - Soft Matter In the nanoscale regime, flow behaviors for liquids show qualitative deviations from bulk expectations. In this work, we reveal by molecular dynamics simulations that plug flow down to nanoscale induces molecular friction that leads to a new flow structure due to the molecular clogging of the encaged liquid. This plug-like nanoscale liquid flow shows several features differ from the macroscopic plug flow and Poiseuille flow: It leads to enhanced liquid/solid friction, producing a friction of several order of magnitude larger than that of Couette flow; the friction enhancement is sensitively dependent of the liquid column length and the wettability of the solid substrates; it leads to the local compaction of liquid molecules that may induce solidification phenomenon for a long liquid column. GRAPHICAL ABSTRACT: [Image: see text] Springer Berlin Heidelberg 2022-07-11 2022 /pmc/articles/PMC9276620/ /pubmed/35819524 http://dx.doi.org/10.1140/epje/s10189-022-00208-z Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Regular Article - Soft Matter
Chen, Shan
Guo, Zhenjiang
Zhang, Hongguang
Pagonabarraga, Ignacio
Zhang, Xianren
Maximizing friction by liquid flow clogging in confinement
title Maximizing friction by liquid flow clogging in confinement
title_full Maximizing friction by liquid flow clogging in confinement
title_fullStr Maximizing friction by liquid flow clogging in confinement
title_full_unstemmed Maximizing friction by liquid flow clogging in confinement
title_short Maximizing friction by liquid flow clogging in confinement
title_sort maximizing friction by liquid flow clogging in confinement
topic Regular Article - Soft Matter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9276620/
https://www.ncbi.nlm.nih.gov/pubmed/35819524
http://dx.doi.org/10.1140/epje/s10189-022-00208-z
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