Large-scale and local morphological impact along the northern side of DELTA 21

Large-scale and local morphological impact along the northern side of DELTA 21

Li, Zhaoyi (TU Delft Civil Engineering and Geosciences)

Aarninkhof, S.G.J. (graduation committee)
Onderwater, Martijn (mentor)
Voorendt, M.Z. (graduation committee)

Delft University of Technology

DELTA 21

2020-11-16

This report investigates the long-term morphological changes caused by the DELTA 21 project at the northern side, including the large scale morphological development with Delft3D model and at local scale the coastline deformation with UNIBEST-CL model. The necessity of the layout design improvement of DELTA 21 is analyzed by comparing different results in case of the improved layout and the original layout. On local scale, the model results indicate that shoreline retreat will happen around the head of Valmeer and large amount of sediment is lost in that section in case of both original layout and improved layout. And the improvement in the layout of DELTA 21 project has remarkable influence on coastline evolution and sediment balance. On large scale, a scour hole near the most western location of the Valmeer and a large submerged sand bar at the northern side of Valmeer are developed after 20 years. In case of original layout, the scour hole gives a larger maximum depth. It can be concluded that the improved layout of DELTA 21 gives better performance on both large scale and local scale.

DELTA 21
Morphodynamic model
Morphological
Delft3D
Unibest-CL+

http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6

51.924972, 3.918126.

Student theses

master thesis

© 2020 Zhaoyi Li