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Wind stress over waves in stably stratified flow |
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| Authors: | Dag Myrhaug Olav H Slaattelid |
| Affiliation: | a Department of Marine Hydrodynamics, Norwegian University of Science and Technology, Otto Nielsens vei 10, N-7034 Trondheim, Norway b Norwegian Marine Technology Research Institute, P.O.Box 4125 Valentinlyst, N-7002 Trondheim, Norway |
| Abstract: | The paper presents the wind shear stress on the sea surface as well as the velocity profile in stably stratified atmospheric boundary layer flow over wind waves by using similarity theory. For a given geostrophic velocity, Coriolis parameter, spectral peak period and stratification parameter, the sea surface shear stress is determined. Further, the direction of the sea surface shear stress and the velocity profile are given. Parameterizations of the results are also presented. Finally, the engineering relevance of the results is discussed, and, if the wind velocity at the 10 m elevation is available, a simplified method of calculating the sea surface shear stress is given. |
| Keywords: | Wind effects Shear flow Water waves Flow interactions Boundary layer flow Parameter estimation Stratified flow Coriolis parameter Similarity theory |
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