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  • Liquid crystal microfluidics for tunable flow shaping
    Sengupta, Anupam ...
    We explore the flow of a nematic liquid crystal in microfluidic channels with a rectangular cross section through experiments and numerical modeling. The flow profile and the liquid crystal ... orientational profile show three distinct regimes of weak, medium, and strong flow as the driving pressure is varied. These are identified by comparing polarizing optical microscopy experiments and numerical solutions of the nematofluidic equations of motion. The relative stability of the regimes is related to the de Gennes characteristic shear-flow lengths e1 and e2, together with the channelʼs aspect ratio w/d. Finally, we show that the liquid crystalline microfluidic flow can be fully steered from left to right of a simple microchannel by applying transverse temperature gradients.
    Source: Physical review letters. - ISSN 0031-9007 (Vol. 110, iss. 4, 2013, str. 048303-1-048303-5)
    Type of material - article, component part ; adult, serious
    Publish date - 2013
    Language - english
    COBISS.SI-ID - 2528868

    Link(s):

    http://prl.aps.org/abstract/PRL/v110/i4/e048303

    Dostop do polnega besedila za naročnike APS Journals



source: Physical review letters. - ISSN 0031-9007 (Vol. 110, iss. 4, 2013, str. 048303-1-048303-5)
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