The effects of turbulence intensity and scale on the mean flow past square rods

Y. Nakamura, Yuji Ohya

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4 Citations (Scopus)

Abstract

Measurements on square rods with their square face normal to turbulent flow show that the mean base pressure can be varied considerably with turbulent intensity and scale as well as with the thickness of a rod. Turbulence decreases the mean base pressure of a short rod while it increases the mean base pressure of a long rod. Turbulence causes earlier reattachment of the separated shear layers to the sides of a long rod. It is suggested that the effect of turbulence on the mean base pressure of a rod is restricted to a certain finite range of turbulence scale. There is a subrange of turbulence scale where the mean base pressure, although very different from the smooth-flow value, remains almost unchanged with turbulence scale.

Original languageEnglish
Pages (from-to)421-430
Number of pages10
JournalJournal of Wind Engineering and Industrial Aerodynamics
Volume11
Issue number1-3
DOIs
Publication statusPublished - Jan 1 1983

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All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering

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