The effects of turbulence on the mean flow past two-dimensional rectangular cylinders

Yasuharu Nakamura, Yuji Ohya

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

There are two main effects of turbulence on the mean flow past rectangular cylinders, just as found earlier for square rods. Small-scale turbulence increases the growth rate of the separated shear layers through increased mixing. Large-scale turbulence weakens regular vortex shedding by reducing spanwise correlation. The consequences of increased mixing and weakened regular vortex shedding depend on the depth-to-height ratio of a rectangular cylinder. In particular, the mean base pressure of a rectangular cylinder can be varied significantly by both the scale and intensity of turbulence.

Original languageEnglish
Pages (from-to)255-273
Number of pages19
JournalJournal of Fluid Mechanics
Volume149
Issue numberHY7
DOIs
Publication statusPublished - Dec 1984

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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