Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/160792
Title: Flow direction-dependent elastic instability in a symmetry-breaking microchannel
Authors: Zhang, Wu
Wang, Zihuang
Zhang, Meng
Lin, Jiahan
Chen, Weiqian
Hu, Yuhong
Li, Shuzhou
Keywords: Engineering::Materials
Issue Date: 2021
Source: Zhang, W., Wang, Z., Zhang, M., Lin, J., Chen, W., Hu, Y. & Li, S. (2021). Flow direction-dependent elastic instability in a symmetry-breaking microchannel. Micromachines, 12(10), 1139-. https://dx.doi.org/10.3390/mi12101139
Journal: Micromachines 
Abstract: This paper reports flow direction-dependent elastic instability in a symmetry-breaking microchannel. The microchannel consisted of a square chamber and a nozzle structure. A viscoelastic polyacrylamide solution was used for the instability demonstration. The instability was realized as the viscoelastic flow became asymmetric and unsteady in the microchannel when the flow exceeded a critical Weissenberg number. The critical Weissenberg number was found to be different for the forward-directed flow and the backward-directed flow in the microchannel.
URI: https://hdl.handle.net/10356/160792
ISSN: 2072-666X
DOI: 10.3390/mi12101139
Schools: School of Materials Science and Engineering 
Rights: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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