Print Email Facebook Twitter Towards a coupled morphodynamic model of the nearshore zone and the beach at the Sand Engine Title Towards a coupled morphodynamic model of the nearshore zone and the beach at the Sand Engine: Combining waves, tide, morphodynamics and aeolian sediment transport into a process-based model Author Velhorst, R.L.C. Contributor Aarninkhof, S.G.J. (mentor) Luijendijk, A.P. (mentor) Hoonhout, B.M. (mentor) De Vries, S. (mentor) Zijlema, M. (mentor) Faculty Civil Engineering and Geosciences Department Hydraulic Engineering Date 2017-05-31 Abstract Morphodynamic models are widespread in coastal engineering practice and indispensable to predict the effectiveness of (large-scale) sandy interventions. These models enable quantification of the effects on enhanced safety against flooding and on environmental impact over time, based on physical processes such as hydrodynamics and sediment transport. The Sand Engine is a mega-scale nourishment pilot along the Dutch coast with a substantial sub-aerial surface and significant aeolian sediment transport, which highlights the need to integrate aeolian sediment transport and dry beach changes in current morphodynamic models. An explicit objective of the Sand Engine emphasizes this need: its dune area should increase by natural processes in the coming years, a process linked to aeolian sediment transport. In order to accurately model the morphological evolution of the Sand Engine, a model incorporating both morphodynamics and aeolian sediment transport is preferable. However, morphodynamics and aeolian sediment transport interact and the dynamics of the bathymetry and the water line cause the physical interface between sub-aerial and sub-aqueous processes to be highly variable both in space and time, making it complex to model the (lower) beach and the nearshore zone. Current morphodynamicmodels such as Delft3D FlexibleMesh (FM) only take into account hydrodynamic forces as drivers for sediment transport and do not resolve bed changes on the dry beach. Vice versa aeolian sediment transport models as AeoLiS do not include hydrodynamics and subaquaeous sediment transport. Recent developments in model couplings allow implementing the interaction between morphodynamics and aeolian sediment transport. Subject coastal morphodynamicsaeoliansediment transportprocess-based modellingmodel couplingDelft3DAeoLiS To reference this document use: http://resolver.tudelft.nl/uuid:30deeb89-d41c-485d-835e-36f48bbf58fc Coordinates 52.051911, 4.183558 Part of collection Student theses Document type master thesis Rights (c) 2017 R.L.C. Velhorst Files PDF MSc_thesis_RLC_Velhorst_screen.pdf 50.69 MB Close viewer /islandora/object/uuid:30deeb89-d41c-485d-835e-36f48bbf58fc/datastream/OBJ/view