Sand Engines and Super Nourishment

Harnessing natures own power to do your work is about as god as design gets – here a cryptic description of such a project from F.A.D

[Computed morphological development of hook-shaped design based on “computed wave fields, flow velocity fields, sediment transport fields, morphological evolution, sedimentation/erosion patterns, erosion of adjacent coastlines, necessary nourishment volumes and evolution of dune area. Results were compared to the reference simulation without a Sand Engine. For aggregated parameters such as the erosion volume of the MCL zone in time, a uncertainty of about 30% in magnitude and time was estimated based on sensitivity computations in which forcing conditions, model parameters and numerical settings were varied.” *]

Moving a lot of sand to where it will strategically move itself:

The Sand Engine project will involve depositing 21.5 million m3 of sand in the sea in the shape of a hook that rises above the water line. The base of the hook will be connected to the coastline at Ter Heijde. Wind, waves and ocean currents will gradually distribute the sand along the coast. ‘Building with nature’ in this way will ensure natural sand suppletion, so that the coastline grows. The Sand Engine project will therefore help protect the coast and create new land for conservation and recreational purposes at the same time. In addition, it will also be financially advantageous: once it is constructed, it will no longer be necessary to deposit sand every five years in order to continue protecting the coast.

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