Drag reduction on grooved cylinders in the critical Reynolds number regime

Steven J. Quintavalla, Alexander J. Angilella, Alexander J. Smits

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


Experiments show that significant drag reductions may be realized for circular cylinders in cross-flow by using grooves, even at very shallow relative groove depths. It is demonstrated that the total groove area has a significant effect on reducing the critical Reynolds number, whether the area is increased through changing the groove shape, width, or depth. A strong correspondence to the minimum drag coefficient is also observed.

Original languageAmerican English
Pages (from-to)15-18
Number of pages4
JournalExperimental Thermal and Fluid Science
StatePublished - Jul 2013

ASJC Scopus subject areas

  • General Chemical Engineering
  • Nuclear Energy and Engineering
  • Aerospace Engineering
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


  • Critical Reynolds number
  • Cylinder drag
  • Drag reduction
  • Grooved cylinders
  • Rough cylinders


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