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Rip currents and rip channel morphodynamics under quasi-steady conditions
| Content Provider | Semantic Scholar |
|---|---|
| Author | Simeonov, Julian A. Holland, Todd K. Spansel, Steven |
| Copyright Year | 2009 |
| Abstract | We developed a realistic test case for morphodynamic predictions of short-term bathymetry evolution associated with quasi-steady rip currents. Assuming stationary forcing, predictions made by the coupled wave-hydrodynamic-morphodynamic model Delft3D are compared with surf zone morphological change inferred from quarterly in-situ bathymétrie surveys. The model gives plausible two-dimensional hydrodynamic predictions with offshore currents being strongest in the rip channels. When the default wave-induced bed-load transport is included the model predicts accretion on the bar similar to the observations but the predicted sandbar amplitude grows unrealistically. Both with and without wave-induced transport, the model underestimates the erosion in the rip channels.1 |
| Starting Page | 1 |
| Ending Page | 7 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.dtic.mil/dtic/tr/fulltext/u2/a527456.pdf |
| Journal | OCEANS 2009 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
