Abstract
The dynamical equations governing small amplitude wave disturbances in turbulent shear flows are derived. These equations require additional equations or assumptions about the wave-induced fluctuations in the turbulence Reynolds stresses before a closed system can be obtained. Some simple closure models are proposed, and the results of calculations using these models are presented. When the predictions are compared with our data for channel flow, we find it essential that these oscillations in the Reynolds stresses be included in the model. A simple eddy-viscosity representation serves surprisingly well in this respect.
Original language | English (US) |
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Pages (from-to) | 263-288 |
Number of pages | 26 |
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