Print Email Facebook Twitter Field observations of tidal flow separation at a mega-scale beach nourishment Title Field observations of tidal flow separation at a mega-scale beach nourishment Author Radermacher, M. Zeelenberg, W. De Schipper, M. Reniers, A. Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2015-05-15 Abstract Large beach nourishments are often considered an efficient way to deal with coastal zone management issues, notably coastal erosion. Such large nourishments can act as a geometric perturbation, which might cause the tidal current to detach from the coastline. The Sand Motor is a mega-scale beach nourishment in the Netherlands. Field observations of the tidal flow field north of the Sand Motor are presented, showing evidence of flow separation and eddy formation during the flood phase of the tide. GPS-tracked drifters are transported offshore upon deployment near the tip of the nourishment. Flow convergence measured with nearshore current profilers is indicative of flow reversal at the lee side. Images of the temporal development of coherent patterns in time-averaged X-band radar backscatter align with in-situ observations of the flow field. Tidal flow separation at such large nourishments might have an impact on morphological development of the nourishment, as well as on swimmer safety. To reference this document use: http://resolver.tudelft.nl/uuid:10320734-3057-4595-924f-b743b9f41297 DOI https://doi.org/10.1142/9789814689977_0168 Publisher World Scientific Publishing Company Embargo date 2016-05-15 ISBN 9789814689960 Source The Proceedings of the Coastal Sediments 2015, San Diego, USA, 11 – 15 May 2015 Part of collection Institutional Repository Document type conference paper Rights (c) 2015Radermacher, M.Zeelenberg, W.De Schipper, M.Reniers, A. Files PDF CS15_MaxRadermacher_FlowS ... ion_v3.pdf 668.41 KB Close viewer /islandora/object/uuid:10320734-3057-4595-924f-b743b9f41297/datastream/OBJ/view