Journal title
Physical Review Letters
DOI
10.1103/PhysRevLett.119.144502
Issue
14
Volume
119
Last updated
2024-04-02T13:13:43.8+01:00
Page
144502-
Abstract
We demonstrate the passive control of viscous flow in a channel by using an elastic arch embedded in the flow. Depending on the fluid flux, the arch may ‘snap’ between two states — constricting and unconstricting — that differ in hydraulic conductivity by up to an order of magnitude. We use a combination of experiments at a macroscopic scale and theory to study the constricting and unconstricting states, and determine the critical flux required to transition between them. We show that such a device may be precisely tuned for use in a range of applications, and in particular has potential as a passive microfluidic fuse to prevent excessive fluxes in rigid-walled channels.
Symplectic ID
726021
Submitted to ORA
On
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Publication type
Journal Article
Publication date
04 Oct 2017