Modelling tidal-induced sediment transport in a sand-silt mixed environment from days to years: Application to the Jiangsu coastal water, China

In the present study a new multi-fractional, depth-averaged sediment transport module was developed and embedded into a morphodynamic model for a sand-silt mixed shallow water environment. Subsequently, the model was applied to the case of the Jiangsu coast, which features a silt enriched sedimentary environment bordered by two large-scale...

Experimental study investigating various shoreface nourishment designs

This experimental study focuses on the morphological development of a near-equilibrium profile on which to types of shoreface nourishments are placed. As previous studies have indicated that the efficiency of nourishments is mainly influenced by water depth in which they are constructed, two cross-shore locations are considered for an accretive...

Staat en toekomst van de Delta: Achtergronddocument Thema Veiligheid

De overheersende nadruk op het waterperspectief bij het schetsen van oplossingen voor de klimaatproblematiek, belemmert het zicht op de volledige oplossingsruimte voor duurzame adaptatie opties. Om dat inzichtelijk te maken geven wij een aantal aanvullende opties vanuit een mens-perspectief (hoofdstuk2 waterveiligheid in relatie tot...

Morphology of Pits, Channels and Trenches Part 1: Literature review and study approach Part 2: Verification of Delft3D with PUTMOR dataset Part 3: Investigation of the longshore and cross-shore impact of various designs

For several years the large-scale mining of sand from the Dutch Sector of the North sea is in discussion related to the need of sand for shoreface, beach and dune nourishment and large-scale engineering works at sea (Maasvlakte extension, airport at sea). The mining methods considered, basically fall into two categories: wide, shallow or small,...

Measurement errors of instruments for velocity, wave heigt, sand concentration and bed levels in field conditions

Field measurements of hydrodynamics (fluid velocities and wave height), sediment dynamics (sand concentrations) and morphodynamics (bar behaviour) as performed during the COAST3D campaigns at the Egmond site in 1998 and at the Teignmouth site in 1999 inevitably involve the problem of the accuracy of the measured variables. The measurement errors...

Beach erosion and rip channels

Short note on the relation between rip channels and beach erosion.

Hydrodynamic and Morphodynamic Validation of Cross-shore Profile Model (CROSMOR) based on Large Scale Flume Tests (LIP-TESTS)

The CROSMOR-model (Van Rijn, 1997, 1998), representing wave propagation, refraction, shoaling, breaking, associated sand transport and morphology in cross-shore direction based on a probabilistic approach, has been applied to simulate the hydrodynamics and the nearshore bar behaviour for three experiments in the large-scale Delta flume o f Delft...

Mathematical modelling of morphological processes in the case of suspended sediment transport

Sutrench model: Two-dimensional vertical mathematical model for sedimentation in dredged channels and trenches by currents and waves

The construction of a tunnel or a pipeline or a new harbour generally requires the dredging of a channel or trench in a river or estuary. Depending on the geometry of the channel, various morphological problems may arise such as sedimentation and erosion of the channel bed, local erosion near the head of the tunnel elements placed in the channel...