Substantial drag reduction in turbulent flow using liquid-infused surfaces

Tyler Van Buren, Alexander J. Smits

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

Experiments are presented that demonstrate how liquid-infused surfaces can reduce turbulent drag significantly in Taylor-Couette flow. The test liquid was water, and the test surface was composed of square microscopic grooves measuring to , filled with alkane liquids with viscosities from 0.3 to 1.4 times that of water. We achieve drag reduction exceeding 35 %, four times higher than previously reported for liquid-infused surfaces in turbulent flow. The level of drag reduction increased with viscosity ratio, groove width, fluid area fraction and Reynolds number. The optimum groove width was given by.

Original languageEnglish (US)
Pages (from-to)448-456
Number of pages9
JournalJournal of Fluid Mechanics
Volume827
DOIs
StatePublished - Sep 25 2017

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • drag reduction
  • turbulence control
  • turbulent flows

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