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Issue 1, 2012
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Converting steady laminar flow to oscillatory flow through a hydroelasticity approach at microscales

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Abstract

We report a hydroelasticity-based microfluidic oscillator that converts otherwise steady laminar flow to oscillatory flow. It incorporates an elastic diaphragm to enhance nonlinearity of the flow. Negative differential flow resistance is observed. High-frequency oscillatory flow is produced passively through interactions among hydrodynamic, elastic and inertial forces, without resorting to external actuators and control equipment. Driven by fluid flow and pressure, this device can operate in either steady laminar flow or oscillatory flow states, or work as a valve. Its applications for flow control and operation, and mixing enhancement are demonstrated.

Graphical abstract: Converting steady laminar flow to oscillatory flow through a hydroelasticity approach at microscales

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Article information


Submitted
21 Jul 2011
Accepted
03 Oct 2011
First published
03 Nov 2011

Lab Chip, 2012,12, 60-64
Article type
Communication

Converting steady laminar flow to oscillatory flow through a hydroelasticity approach at microscales

H. M. Xia, Z. P. Wang, W. Fan, A. Wijaya, W. Wang and Z. F. Wang, Lab Chip, 2012, 12, 60
DOI: 10.1039/C1LC20667B

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