Modeling Sand Wave Field Dynamics in the North Sea using Delft3D Flexible Mesh

Offshore wind farms are being built at an unprecedented pace in the North Sea. The Dutch government is aiming for a CO2 neutral energy supply by 2050 and vast cost reductions have turned (offshore) wind energy into a worthy competitor for other (green) energy sources. Most of the planned wind farms in the Dutch North Sea are located in areas...

The physical processes influencing morphodynamics in braided rivers: A case study on the Ayeyarwady River

The Ayeyarwady River is a river with large hydrological variations and an abundance of relatively fine non-cohesive sediment, causing the dynamic behaviour of the river with fast shifting channels. This dynamic behaviour, together with the large hydrological variations, is the source of a frequently flooding river with a moderate navigability....

Closure of offtakes in Bangladesh: Causes and assessment of remedial measures

Bangladesh is characterised by its complex river system, which includes the downstream ends of two of the largest rivers in the world: the Ganges and Brahmaputra. Extremely variable flows and fast morphological changes are the principal characteristics of this system, which presents exceptional challenges for river engineering. Distributary...

Morphological development after the July 2014 flow slide on the tidal flat of Walsoorden in the Western Scheldt

The overall behaviour of the tide-dominated Western Scheldt is in general well known. Its multichannel-system consists of ebb and flood channels, separated by intertidal areas; the tidal flats. The estuary shows a dynamic behaviour of erosion and sedimentation of the tidal flats. A large flow slide occurred at the tidal flat of Walsoorden in...

Modelling sand-mud-bed interaction in the Scheldt estuary

The tide-dominated Scheldt estuary is located in the southwest of the Netherlands. From the Dutch-Belgian border seawards, it consists of a system of channels and shoals and an ebb-tidal delta facing the North Sea. The behaviour of non-cohesive (sand) and cohesive (mud) sediment particles in the area are (until now) generally studied using...

Climate change and the morphological stability of the Tu Hien inlet, Vietnam

Historically, the coastal zone has always attracted people and across the globe the benefits of inlet systems have made communities settle there. The Tu Hien inlet and the Tam Giang–Cau Hai lagoon system in Vietnam are no exception, as approximately half a million people depend on it for their livelihood. Tidal inlets are also known for their...

Preliminary study of the flushing operations of the Langmann reservoir, Austria

The Langmann reservoir is part of the hydropower system in the river Teigitsch and in the reservoir loss of storage volume occurs. The reservoir was therefore flushed, but recently no permission is granted. The reason is the high sediment concentrations that have negative effects on the downstream region. An optimization of the flushing...

WAD een beweging; Onderzoek naar de morfologische veranderingen in het Friesche Zeegat en de gevolgen voor de bevaarbaarheid van de vaarroute naar Schiermonnikoog

Een onderzoek naar de morfologische veranderingen in het Friesche Zeegat. Na de afsluiting van de Lauwerszee is het bekken continu in verandering. Dit heeft gevolgen voor de bevaarbaarheid van de vaarroute naar Schiermonnikoog. In dit onderzoek wordt een voorspelling gedaan naar de ontwikkelingen voor het komend decennium en de gevolgen van deze...