Mean flow and turbulence scaling in a tidal boundary layer
Calculations based on data from 10 triplets of orthogonally oriented ducted impeller current meters vertically spaced near the bottom of an estuary in Puget Sound show that: (1) 10 min averaging reduces the uncertainties in the value of the various means to±3.6% for the velocity,± 8.8% for the frict...
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| Veröffentlicht in: | Continental shelf research 1983-01, Vol.2 (2), p.109-126 |
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| container_title | Continental shelf research |
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| creator | Gross, Thomas F. Nowell, Arthur R.M. |
| description | Calculations based on data from 10 triplets of orthogonally oriented ducted impeller current meters vertically spaced near the bottom of an estuary in Puget Sound show that: (1) 10 min averaging reduces the uncertainties in the value of the various means to±3.6% for the velocity,± 8.8% for the friction velocity,±50% for the extrapolated zero-velocity height (roughness length), and±40% for the Reynolds stress (95% confidence); (2) because of the magnitude of the lowfrequency (tidal) variability, lengthening of the averaging period does not reduce the uncertainties; and (3) a quasi-stationary model suffices to relate the Reynolds stress to the mean velocity profile within the above uncertainties. Including the dynamic effects of temporal variability in the model does not produce a measurably better prediction. |
| doi_str_mv | 10.1016/0278-4343(83)90011-0 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0278-4343 |
| ispartof | Continental shelf research, 1983-01, Vol.2 (2), p.109-126 |
| issn | 0278-4343 1873-6955 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_18354501 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Brackish Marine |
| title | Mean flow and turbulence scaling in a tidal boundary layer |
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