The mechanics of an organized wave in turbulent shear flow

A. K.M.F. Hussain, W. C. Reynolds

Research output: Contribution to journalArticle

587 Scopus citations

Abstract

Some preliminary results on the behaviour of controlled wave disturbances introduced artificially into turbulent channel flow are reported. Weak plane-wave disturbances are introduced by vibrating ribbons near each wall. The amplitude and relative phase of the streamwise component of the induced wave is educed from a hot wire signal, allowing the wave speed and attenuation characteristics and the wave shape to be traced downstream. The normal component and wave Reynolds stress have been inferred from these data. It appears that Orr–Sommerfeld theories attempted to date are inadequate for description of these waves.

Original languageEnglish
Pages (from-to)241-258
Number of pages18
JournalJournal of Fluid Mechanics
Volume41
Issue number2
DOIs
StatePublished - Apr 13 1970

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