The mechanics of an organized wave in turbulent shear flow. Part 2. Experimental results

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

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83 Scopus citations

Abstract

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, the attenuation characteristics and the wave shape to be traced downstream. These results form a basis for evaluation of closure models for the dynamical equations describing wave components in shear-flow turbulence.

Original languageEnglish
Pages (from-to)241-261
Number of pages21
JournalJournal of Fluid Mechanics
Volume54
Issue number2
DOIs
StatePublished - Jul 25 1972

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