Journal
LAB ON A CHIP
Volume 12, Issue 1, Pages 60-64Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1lc20667b
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Funding
- Singapore Institute of Manufacturing Technology under the Agency for Science, Technology and Research (A*STAR, Singapore)
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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.
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