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                                      Asymmetric Capillary Particle datasets

                                      Published:

                                      13 September 2017

                                      These datasets are concerned with a theoretical investigation of particle transport in longitudinally asymmetric but axially symmetric capillaries, allowing for the influence of both diffusion and convection. In this study attention is focused on characterizing the influence of tube geometry and applied hydraulic pressure on the magnitude, direction and rate of transport of particles in axi-symmetric, saw-tooth shaped tubes. Three initial value problems are considered. The first involves the evolution of a fixed number of particles initially confined to a central wave-section. The second involves the evolution of the same initial state but including an ongoing production of particles in the central wave-section. The third involves the evolution of particles in a fully laden tube. Based on a physical model of convective-diffusive transport, assuming an underlying oscillatory fluid velocity field that is unaffected by the presence of the particles, we find that transport rates and even net transport directions depend critically on the design specifics, such as tube geometry, flow rate, initial particle configuration and whether or not particles are continuously introduced. The second transient scenario is qualitatively independent of the details of how particles are generated. In the third scenario there is no net transport. This fundamental study could engender greater understanding of practical systems, such as particle transport in periodic micro- and nano-ratchets.

                                      Data and resources

                                      Other resources collected by the researchers may be available subject to researcher approval. Please contact Prof Stan Miklavcic.

                                      This dataset is related to the following publications

                                      The onset of recirculation flow in periodic capillaries: geometric effects

                                      This dataset is related to the following collections

                                      Asymmetric Capillary Particle collection of datasets

                                      Period covered by the dataset

                                      Start date: 01 Jan 2016
                                      End date: 31 Dec 2016

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                                      Data citation

                                      Islam, N, Miklavcic, S, Hajek, B, White, L 2017, Asymmetric Capillary Particle datasets, University of South Australia, viewed 19 November 2017, retrieved from <http://researchoutputs.unisa.edu.au/11541.1/5ceb9ca743504bd090295f9a9cb7a402>.