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    Capillary-Driven Flow in Open Microchannels Printed with Fused Deposition Modeling

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    2015-143-Lade.pdf (724.4Kb)
    Date
    2015
    Author
    Lade, Robert K. Jr
    Hippchen, Erik J.
    Rodgers, Luke
    Macosko, Christopher
    Francis, Lorraine F.
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    Abstract
    The fundamentals of fluid flow in 3D printed, open microchannels created using fused deposition modeling (FDM) are explored. Printed microchannels are used in microfluidic devices and have potential applications in embedding electronics in plastic substrates. However, FDM parts possess rough surfaces, and in this study, surface topography is shown to have an important impact on flow behavior, causing the liquid to travel down the channel with a characteristic ‘pulsing’ movement. We also analyze the influence of print orientation on capillary flow, where microchannels printed in specific orientations are shown to exhibit different flow dynamics.
    Department
    Mechanical Engineering
    Subject
    fused deposition modeling
    capillary flow
    microchannel
    flow dynamics
    URI
    https://hdl.handle.net/2152/89457
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