Modelling rhythmic morphology in the surf zone

Coastal erosion is increasingly being prevented by the application of shoreface nourishments. Although they are applied successfully, their development and their impact on the coastal system is still difficult to predict. Especially the effects of shoreface nourishments on the already existing rhythmic bed forms in the surf zone are unknown. The...

Sand ripples in irregular and changing wave conditions: A review of laboratory and field studies

The review is a precursor to a new programme of experiments on ripple regime sediment transport processes to be carried out in the Aberdeen Oscillatory Flow Tunnel (AOFT) as part of the SANDPIT project. The experiments will involve oscillatory flow only. For this reason the review concentrates on ripple regime transport under wave-only...

Bed resistance to flow of the Bovenrijn-Waal rivers during the 1998 flood

Ruimtelijke variabiliteit van duinkarakteristieken in de Waal tijdens een afvoergolf in 1997

In dit onderzoek is aandacht besteed aan de ruimtelijke variatie in duinkarakteristieken en bodemtransport in een 10 km lang traject in de Waal bij Druten. Daamaast is ook aandacht besteed aan veranderingen in gemiddelde bodemligging van het zomerbed in hetzelfde traject van de Waal en rond de Pannerdensche Kop. In het traject in de Waal kwamen...

Autonome bodemontwikkeling Waal en Pannerdensch kanaal: Omzetting bodempeilingen naar ARC/INFO

Impact of sea level rise on the morphology of the Wadden Sea in the scope of its ecological function (phase 4): General considerations on hydraulic conditions, sediment transports, sand balance, bed composition and impact of sea-level rise on tidal flats

Study of bedform geometry in large rivers

Sediment transport, sediment concentrations and bedforms in simulated asymmetric wave conditions: Experimental study in the large oscillating water tunnel of Delft Hydraulics: data report

Sediment transport, sediment concentrations and bedforms in simulated asymmetric wave conditions: Experimental study in the large oscillating water tunnel of Delft Hydraulics

Bedforms, near-bed sediment concentrations and sedimenttransport in simulated regular wave conditions: Experimental study in the large oscillating water tunnel of Delft Hydraulics

Zand-watermengselstromingen: Het gedrag van zand-watermengselstromingen boven water: Verslag experimentele vervolgstudie

Morfologie afgepleisterde beddingen: Proeven met hoogwatergolven

Dimensies van beddingvormen onder permanente stromingsomstandigheden bij hoog sedimenttransport

Water movement over a horizontal bed and solitary sand dunes

In order to predict waterlevel changes in rivers due to floodwaves and local bedshapes for navigation, the local behaviour of the riverbed should be known . In many cases the bed of 3 river consists of dunes, which propagate downstream due to the sediment transport along the dunes . In this report mainly the watermovement but also the sediment...

Beddingvormen

Overview of bed forms (ripples, dunes, etc) in rivers. A literature study regarding bed forms caused by river flow in cohesionless material (sand bed). Bed forms generated by waves and wind are excluded.

An analysis of relationships between flow conditions and statistical measures of bed configurations in straight and curved alluvial channels

The reliability of predictors for friction factors and rates of sediment transport in alluvial channels is open to question when they are applied to sinuous channels. Bed-form geometry in a curved channel and a straight flume which are subject to the same nominal flow conditions is investigated by statistical analysis of records of streamed...