Filament formation via the instability of a stretching viscous sheet: Physical mechanism, linear theory, and fiber applications
Name
PhysRevFluids.4.073902.pdf
Description
Published version
Size
855.46 KB
Format
Adobe PDF
Checksum (MD5)
e8f19b47934c61eaec0e072c3a266d70
Author(s)
Xu, Bingrui
Li, Minhao
Wang, Feng
Johnson, Steven G
Fink, Yoel
Deng, Daosheng
Date Issued
2019
Journal
Physical Review Fluids
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2019 American Physical Society. Many intriguing patterns are driven by fluid instabilities, even down to micrometer and nanometer scales, with numerous technological and industrial applications. Here, we propose a novel physical mechanism for filament formation in a stretched viscous sheet by combining stretching and van der Waals forces. We show that a transverse instability is enhanced while the longitudinal instability is suppressed, resulting in filamentation. We find a close agreement between the experimental data and the predictions of a linear-stability analysis. These results offer a pathway to achieving sophisticated microstructuring-nanostructuring for functional devices in either a single fiber or in integrated fabrics for large-scale textiles.
MIT Department
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevFluids.4.073902
