The current structure of stratified tidal planetary boundary layer flow
- Norwegian Inst. of Tech., Trondheim (Norway). Dept. of Marine Hydrodynamics
- Norwegian Marine Technology Research Inst., Trondheim (Norway)
The paper presents the bottom shear stress and velocity profiles in stratified tidal planetary boundary layer flow by using similarity theory. For a given seabed roughness length, free stream current velocity components, frequency of tidal oscillation, Coriolis parameter and stratification parameter the maximum bottom shear stress is determined for flow conditions in the rough, smooth and transitional smooth-to-rough turbulent regime. Further, the direction of the bottom shear stress and the velocity profiles are given. Comparison is made with data from field measurements of time-independent as well as tidal planetary boundary layer flow for neutral conditions, and the agreement between the predictions and the data is generally good. Further, an example of application for stable stratification is given, and qualitatively the predictions show, as expected, that the bottom shear stress and the thickness of the boundary layer become smaller for stable than for neutral stratification. Other features of the tidal planetary boundary layer flow are also discussed.
- OSTI ID:
- 182687
- Report Number(s):
- CONF-950695-; ISBN 0-7918-1306-1; TRN: IM9608%%52
- Resource Relation:
- Conference: International conference on offshore mechanics and arctic engineering, Copenhagen (Denmark), 18-22 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of OMAE 1995 -- Proceedings of the 14. international conference on offshore mechanics and arctic engineering. Volume 1, Part A: Offshore technology; Chakrabarti, S.K. [ed.] [Chicago Bridge and Iron Technical Services, Plainfield, IL (United States)]; Myrhaug, D. [ed.] [Norwegian Inst. of Tech., Trondheim (Norway)]; Ertekin, R.C. [ed.] [Univ. of Hawaii, Honolulu, HI (United States)]; Maeda, Hisaaki [ed.] [Univ. of Tokyo (Japan)]; Wang, H.T. [ed.] [Naval Research Lab., Washington, DC (United States)]; PB: 523 p.
- Country of Publication:
- United States
- Language:
- English
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