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

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

doi:10.1017/S0022112072000667

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

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

Mechanical Engineering

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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 language	English
Pages (from-to)	241-261
Number of pages	21
Journal	Journal of Fluid Mechanics
Volume	54
Issue number	2
DOIs	https://doi.org/10.1017/S0022112072000667
State	Published - Jul 25 1972

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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.",

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

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