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Issue 44, 2013
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Differential capillary viscometer for measurement of non-Newtonian fluids

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Abstract

Here we demonstrate a novel differential microfluidic device for the determination of the rate dependence of the shear viscosity of complex fluids. The device design is simple, robust and does not require internal or external pressure measurements, making the method open for miniaturisation and incorporation into lab-on-a chip applications and online monitoring purposes in process control. The working principle is tested in several possible geometries with different shear thinning model fluids with power-law exponents n ranging from 0 < n < 1.

Graphical abstract: Differential capillary viscometer for measurement of non-Newtonian fluids

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Publication details

The article was received on 13 Jun 2013, accepted on 05 Sep 2013 and first published on 05 Sep 2013


Article type: Paper
DOI: 10.1039/C3RA42921K
Citation: RSC Adv., 2013,3, 21730-21735
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    Differential capillary viscometer for measurement of non-Newtonian fluids

    B. K. Wunderlich and A. R. Bausch, RSC Adv., 2013, 3, 21730
    DOI: 10.1039/C3RA42921K

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