The interaction of gravity waves and turbulent channel flow
Abstract
Modifications of waves due to wavecurrent interaction and the corresponding modification of the flow properties by the waves were studied. A theoretical model was developed to describe the energy dissipation in terms of measured wave and hydraulic flow parameters. Turbulent kinetic energy production was analyzed as a function of turbulent Reynolds stress and mean and waveinduced velocity gradients. Wavecurrent interactions were shown to significantly increase rates of wave energy dissipation. The decay of wave energy increased generally as wave steepness and flow velocity increased. Waveinduced velocities were shown to modify mean velocity gradients and existing turbulence quantities. Spectral quantities as well as phase averaged values showed a decrease in wave related activity as depth increased. Results suggested that surface waves extracted energy from the mean velocity gradient to produce turbulent energy that was diffused downward.
 Publication:

Ph.D. Thesis
 Pub Date:
 1976
 Bibcode:
 1976PhDT........30V
 Keywords:

 Gravity Waves;
 Turbulent Flow;
 Water Waves;
 Wave Interaction;
 Open Channel Flow;
 Surface Waves;
 Wave Attenuation;
 Fluid Mechanics and Heat Transfer