On turbulent contribution to frictional drag in wall-bounded turbulent flow

Feng Chen Li, Yasuo Kawaguchi, Koichi Hishida, Marie Oshima

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Abstract

We propose a simple model for turbulent contribution to the frictional drag in a wall-bounded turbulent flow based on the characteristic parameters of turbulent bursting events. It is verified on water and drag-reducing surfactant solution flows investigated by particle image velocimetry in experiments. It is obtained that the turbulent contribution to the skin friction factor is linearly proportional to the product of the spatial frequency and strength of turbulent bursts originated from the wall.

Original languageEnglish
Pages (from-to)1226-1229
Number of pages4
JournalChinese Physics Letters
Volume23
Issue number5
DOIs
Publication statusPublished - 2006 May 1

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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