Davies, HS, Debarre, D, El Amri, N et al. (3 more authors) (2018) Elastohydrodynamic Lift at a Soft Wall. Physical Review Letters, 120 (19). 198001. ISSN 0031-9007
Abstract
We study experimentally the motion of nondeformable microbeads in a linear shear flow close to a wall bearing a thin and soft polymer layer. Combining microfluidics and 3D optical tracking, we demonstrate that the steady-state bead-to-surface distance increases with the flow strength. Moreover, such lift is shown to result from flow-induced deformations of the layer, in quantitative agreement with theoretical predictions from elastohydrodynamics. This study thus provides the first experimental evidence of “soft lubrication” at play at small scale, in a system relevant, for example, to the physics of blood microcirculation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018 American Physical Society. This is an author produced version of a paper published in Physical Review Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Fluid Dynamics; Biological Physics; Polymers & Soft Matter |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biomedical Sciences (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 06 Jun 2018 16:13 |
Last Modified: | 06 Jun 2018 16:17 |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevLett.120.198001 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:131033 |