Diffusion of Passive Tracers Advected by Laminar Shear Flow in Triangular Capillary Pipes

ORAL

Abstract

We investigate the dispersion of a passive tracer in laminar shear flow through triangular capillary pipes. We show through simulation and experiments how the longitudinal asymmetry of the tracer distribution changes in time. We observe a change in the longitudinal concentration profile from back-loaded to front-loaded, corresponding to a sign-change in the (cross-sectionally averaged) skewness. Future directions will be discussed.

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Presenters

  • Francesca Bernardi

    Florida State University

Authors

  • Francesca Bernardi

    Florida State University

  • Roberto Camassa

    Univ of NC - Chapel Hill, University of North Carolina at Chapel Hill

  • Gabrielle M Hobson

    University of North Carolina at Chapel Hill

  • Richard M McLaughlin

    Univ of NC - Chapel Hill, University of North Carolina at Chapel Hill