Original title: Viscosity-dominated regime of flow in fluidic devices at very low Reynolds numbers
Authors: Tesař, Václav
Document type: Papers
Conference/Event: Symposium on Anemometry /30./, Holany-Litice (CZ), 2016-05-31 / 2016-06-01
Year: 2016
Language: eng
Abstract: Because of their small size – and typically due to high viscosity of handled fluids - some microfluidic devices have to operate at very low Reynolds number levels. The devices based on using inertia of a deflected jet under these conditions losetheir efficiency and finally exhibit a phenomenon so far not discussed in literature: they enter a regime in which their behaviour is no more specified by Reynolds number value. Paper presents a detailed case description of a valve and itstransition into the sub-dynamic regime. Pressure-assisted flow into the device terminal is characterised by newly introduced pressure parameter.
Keywords: fluidics; pressure-driven microfluidics; Reynolds number
Project no.: GA13-23046S (CEP)
Funding provider: GA ČR
Host item entry: 30th Symposium on Anemometry, ISBN 978-80-87117-14-9

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0260318

Permalink: http://www.nusl.cz/ntk/nusl-252263


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Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers