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Aerodynamically driven motion of a wall-bounded drop on a smooth solid substrate

Patrick M. Seiler, Mark Gloerfeld, Ilia V. Roisman*, and Cameron Tropea

  • Technische Universität Darmstadt, Institute of Fluid Mechanics and Aerodynamic Alarich-Weiss-Straße 10, 64287 Darmstadt, Germany

  • *roisman@sla.tu-darmstadt.de
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Phys. Rev. Fluids 4, 024001 – Published 7 February, 2019

DOI: https://doi.org/10.1103/PhysRevFluids.4.024001

Abstract

The motion of wall-bounded drops moving on solid substrates driven by a fully turbulent channel flow is experimentally investigated for four substrates of different wetting properties. An appropriate scaling has been found to describe the dimensionless drop velocity (capillary number) in terms of a dimensionless flow attack velocity, taking into account the surface wetting properties. The derived model agrees very well with the experimental observations.

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References (51)

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Phys. Rev. Fluids 4, 024001– Published 7 February, 2019
  • Received 28 August 2018
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