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 (US) |
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Pages (from-to) | 241-261 |
Number of pages | 21 |
Journal | Journal of Fluid Mechanics |
Volume | 54 |
Issue number | 2 |
DOIs | |
State | Published - Jul 25 1972 |
ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
- Condensed Matter Physics