The shear-driven failure of liquid-infused surfaces and superhydrophobic surfaces.

ORAL

Abstract

We study experimentally the failure of liquid-infused surfaces under shear. Most of the previous work on this topic focuses on situations where the infused fluid is much more viscous than the external fluid. Here, we study the opposite limit: the viscosity of the infused fluid is much lower than that of the external fluid. Also, we study how the air-filled cavities of superhydrophobic surfaces fill with water under shear, which is another topic that is little studied as compared with pressure-driven failure. In each case we systematically vary the flow rate and characterize both transient and steady-state responses.

*This work was supported under ONR MURI Grants N00014-12-1-0875 and N00014-12-1-0962

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Authors

  • Ying Liu

    • Princeton University

  • Jason Wexler

    • Otherlab
    • Princeton University

  • Howard Stone

    • Princeton University
    • Department of Mechanical and Aerospace Engineering, Princeton University
    • Department of Mechanical and Aerospace Engineering, Princeton University, Princeton NJ 08544, USA