Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 540629
Title Visualizing the hydrodynamics in sieve-based lateral displacement systems
Author(s) Dijkshoorn, J.P.; Valença, J.C. de; Wagterveld, R.M.; Boom, R.M.; Schutyser, M.A.I.
Source Scientific Reports 8 (2018). - ISSN 2045-2322
Department(s) Food Process Engineering
Publication type Refereed Article in a scientific journal
Publication year 2018
Abstract Deterministic lateral displacement (DLD) systems structure suspension flow in so called flow lanes.The width of these flow lanes is crucial for separation of particles and determines whether particles with certain size are displaced or not. In previous research, separation was observed in simplified DLD systems that did not meet the established DLD geometric design criteria, by adjusting the outflow conditions. We here investigated why these simplified DLD systems are able to displace particles, by experimentally investigating the hydrodynamics in the device. Flow lanes were visualized and the local flow velocities were measured using μPIV and compared with 2D fluid dynamics simulations. The size of the flow lanes strongly correlates with the local flow velocity (Vy and Vx), which depends on the hydrodynamics. Therefore, the geometric design criteria of DLD devices is in fact just one method to control the local hydrodynamics, which may also be influenced by other means. These findings give a new perspective on the separation principle, which makes the technique more flexible and easier to
translate to industrial scale.

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