This article is cited in 7 papers

Experimental determination of the friction factor coefficient in microchannels

V. M. Aniskin, K. V. Adamenko, A. A. Maslov

Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: Experimental data used to determine the friction factor in microchannels are presented. Glass microchannels with a circular cross section, diameters of $34.5$, $33.6$, and $24.5$ $\mu$m, and different lengths are studied in the experiments. Pure deionized degassed water is used as a working fluid. The range of the Reynolds numbers is $13\le\mathrm{Re}\le330$. A method of two channels is used to calculate the friction factor. The results obtained are in good agreement with theoretical predictions for the case of a developed laminar flow in circular channels, but the use of the method of two channels has some constraints.

Keywords: laminar flow in microchannels, friction factor, microflows.

UDC: 532.536.24:533

Received: 30.11.2009

 English version: Journal of Applied Mechanics and Technical Physics, 2011, 52:1, 18–23

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