Print Email Facebook Twitter Prediction formula for the spectral wave period Tm-1,0 on mildly sloping shallow foreshores Title Prediction formula for the spectral wave period Tm-1,0 on mildly sloping shallow foreshores Author Hofland, Bas (TU Delft Environmental Fluid Mechanics; TU Delft Hydraulic Structures and Flood Risk; Deltares) Chen, X. (TU Delft Hydraulic Structures and Flood Risk) Altomare, Corrado (Flanders Hydraulics Research; Universiteit Gent) Oosterlo, P. (TU Delft Hydraulic Structures and Flood Risk) Date 2017-05-01 Abstract During the last decades, the spectral wave period Tm-1,0 has become accepted as a characteristic wave period when describing the hydraulic attack on coastal structures, especially over shallow foreshores. In this study, we derive an empirical prediction formula for Tm-1,0 on shallow to extremely shallow foreshores with a mild slope. The formula was determined based on flume tests and numerical calculations, mainly for straight linear foreshore slopes. It is shown that the wave period increases drastically when the water depth decreases; up to eight times the offshore value. The bed slope angle influences the wave period slightly. For short-crested wave fields, the strong increase of Tm-1,0 starts closer to shore (at smaller water depths) than for long-crested wave fields. Subject Spectral wave periodTm−1,0Shallow foreshoreVery shallow foreshoreSea dikeInfragravity waves To reference this document use: http://resolver.tudelft.nl/uuid:2b7e72c7-5aaf-47b4-bb2b-2be4863e37a0 DOI https://doi.org/10.1016/j.coastaleng.2017.02.005 Embargo date 2019-03-31 ISSN 0378-3839 Source Coastal Engineering, 123 (May), 21-28 Part of collection Institutional Repository Document type journal article Rights © 2017 Bas Hofland, X. Chen, Corrado Altomare, P. Oosterlo Files PDF AS_485200623869953_149269 ... tent_1.pdf 1.58 MB Close viewer /islandora/object/uuid:2b7e72c7-5aaf-47b4-bb2b-2be4863e37a0/datastream/OBJ/view