A mechanism for non-Newtonian swimming enhancement

ORAL

Abstract

Polymeric solutions and suspensions are prone to display slip due to the presence of thin low-viscosity fluid layers near boundaries. Using theoretical modeling, we investigate the role of such reduction in fluid friction on locomotion of model microorganisms. Addressing two- and three-dimensional situations, we demonstrate how even very thin regions of reduced fluid friction can dramatically enhance locomotion speeds. Our results suggest a mechanism for enhanced swimming in complex fluid environments.

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Authors

  • Yi Man

    University of Cambridge

  • E. Lauga

    Dept. of Mechanical and Aerospace Engineering, UC San Diego, and Dept. of Applied Mathematics and Theoretical Physics, University of Cambridge, DAMTP, University of Cambridge, University of Cambridge