Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations
Abstract The geometric deformation of viscous fingering is useful for understanding natural multiscale patterns and designing dissipative structures in materials. Although the spatio‐temporal patterns in soft materials are reported previously, there is a lack of research on the spatial finiteness an...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley-VCH
2023-12-01
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| Series: | Advanced Materials Interfaces |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/admi.202300510 |
| _version_ | 1797405034847141888 |
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| author | Leijie Wu Isamu Saito Kenta Hongo Kosuke Okeyoshi |
| author_facet | Leijie Wu Isamu Saito Kenta Hongo Kosuke Okeyoshi |
| author_sort | Leijie Wu |
| collection | DOAJ |
| description | Abstract The geometric deformation of viscous fingering is useful for understanding natural multiscale patterns and designing dissipative structures in materials. Although the spatio‐temporal patterns in soft materials are reported previously, there is a lack of research on the spatial finiteness and boundary effects. In this study, the recognition of spatial finiteness in “meniscus splitting phenomena” in aqueous polymer dispersions during water evaporation is demonstrated. By providing heat energy to polymer dispersions in a Hele‐Shaw cell, an interface fluctuation with concentration unevenness is induced to split the evaporative interface. The spatial finiteness of the interface causes asynchronous nucleation, which is demonstrated using polysaccharide dispersions. The results of the quasi‐natural experiments revealed that the nonequilibrium drying/wetting period for repositioning polymer clusters allows for considerable changes in Reynolds number in a low range (<10−6) to form multiple nuclei. This splitting method will be universally useful in various fields, including fluid dynamics, biology, and microfluidics, as well as non‐equilibrium, colloid, interface, polymer, and materials sciences. |
| first_indexed | 2024-03-09T03:03:45Z |
| format | Article |
| id | doaj.art-4bf391f300d24cd6b5394c309c4089f8 |
| institution | Directory Open Access Journal |
| issn | 2196-7350 |
| language | English |
| last_indexed | 2024-03-09T03:03:45Z |
| publishDate | 2023-12-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Materials Interfaces |
| spelling | doaj.art-4bf391f300d24cd6b5394c309c4089f82023-12-04T08:15:21ZengWiley-VCHAdvanced Materials Interfaces2196-73502023-12-011034n/an/a10.1002/admi.202300510Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface FluctuationsLeijie Wu0Isamu Saito1Kenta Hongo2Kosuke Okeyoshi3Graduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1‐1 Asahidai Nomi Ishikawa 923–1292 JapanGraduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1‐1 Asahidai Nomi Ishikawa 923–1292 JapanGraduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1‐1 Asahidai Nomi Ishikawa 923–1292 JapanGraduate School of Advanced Science and Technology Japan Advanced Institute of Science and Technology 1‐1 Asahidai Nomi Ishikawa 923–1292 JapanAbstract The geometric deformation of viscous fingering is useful for understanding natural multiscale patterns and designing dissipative structures in materials. Although the spatio‐temporal patterns in soft materials are reported previously, there is a lack of research on the spatial finiteness and boundary effects. In this study, the recognition of spatial finiteness in “meniscus splitting phenomena” in aqueous polymer dispersions during water evaporation is demonstrated. By providing heat energy to polymer dispersions in a Hele‐Shaw cell, an interface fluctuation with concentration unevenness is induced to split the evaporative interface. The spatial finiteness of the interface causes asynchronous nucleation, which is demonstrated using polysaccharide dispersions. The results of the quasi‐natural experiments revealed that the nonequilibrium drying/wetting period for repositioning polymer clusters allows for considerable changes in Reynolds number in a low range (<10−6) to form multiple nuclei. This splitting method will be universally useful in various fields, including fluid dynamics, biology, and microfluidics, as well as non‐equilibrium, colloid, interface, polymer, and materials sciences.https://doi.org/10.1002/admi.202300510dissipative structuresinterfacespolysaccharidesReynolds numberviscous fluids |
| spellingShingle | Leijie Wu Isamu Saito Kenta Hongo Kosuke Okeyoshi Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations Advanced Materials Interfaces dissipative structures interfaces polysaccharides Reynolds number viscous fluids |
| title | Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations |
| title_full | Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations |
| title_fullStr | Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations |
| title_full_unstemmed | Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations |
| title_short | Recognition of Spatial Finiteness in Meniscus Splitting Based on Evaporative Interface Fluctuations |
| title_sort | recognition of spatial finiteness in meniscus splitting based on evaporative interface fluctuations |
| topic | dissipative structures interfaces polysaccharides Reynolds number viscous fluids |
| url | https://doi.org/10.1002/admi.202300510 |
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