Experimental characterisation of a novel viscoelastic rectifier design

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A planar microfluidic system with contractions and obstacles is characterized in terms of anisotropic flow resistance due to viscoelastic effects. The working mechanism is illustrated using streak photography, while the diodicity performance is quantified by pressure drop measurements. The point of maximum performance is found to occur at relatively low elasticity levels, with diodicity around 3.5. Based on a previously published numerical work [Ejlebjerg et al., Appl. Phys. Lett. 100, 234102 (2012)], 2D simulations of the FENE-CR differential constitutive model are also presented, but limited reproducibility and uncertainties of the experimental data prevent a direct comparison at low elasticity, where the flow is essentially two-dimensional. © 2012 American Institute of Physics.
Original languageEnglish
JournalBiomicrofluidics
Volume6
Issue number4
Pages (from-to)Paper 044112
ISSN1932-1058
DOIs
Publication statusPublished - 2012
CitationsWeb of Science® Times Cited: No match on DOI

    Research areas

  • Genetic engineering, Microfluidics, Molecular biology, Elasticity

ID: 51690867