Trench Siltation near the ETM of a Well-mixed Estuary

To exploit its socio-economic functions, engineering measures are regularly applied in estuaries. Estuaries are, however, known to be very complex systems. Stemming from this complexity is the generation of a so-called estuarine turbidity maximum (ETM), which poses great siltation problems to the engineering measures. An engineering measure,...

Predicting bedload sediment transport of non-cohesive material in sewer pipes using evolutionary polynomial regression–multi-objective genetic algorithm strategy

Sediment transport in sewer systems is an important issue of interest to engineering practice. Several models have been developed in the past to predict a threshold velocity or shear stress resulting in self-cleansing flow conditions in a sewer pipe. These models, however, could still be improved. This paper develops three new self-cleansing...

Non-deposition self-cleansing models for large sewer pipes

Multiple models from the literature and experimental datasets have been developed and collected to predict sediment transport in sewers. However, all these models were developed for smaller sewer pipes, i.e. using experimental data collected on pipes with diameters smaller than 500 mm. To address this issue, new experimental data were...

Observations of Bedform Migration and Bedload Sediment Transport in Combined Wave-Current Flows

Bedload transport is an important mechanism for sediment flux in the nearshore. Yet few studies examine the relationship between bedform evolution and net sediment transport. Our work contributes concurrent observations of bedform mobility and bedload transport in response to wave dominant, current dominant, and combined wave-current flows in...

Input for a 1D sand-gravel morphodynamic computation including a bedload layer

In the mass balance of a riverbed, some terms are usually assumed constant for reasons of simplicity. One of the terms assumed to be constant is the change in bedload layer, which is defined as the sediment transport divided by the particle velocity. To study the effect of this assumption, a numerical morphodynamic model has to be computed. For...

Approximation formulae for sand transport by currents and waves and implementation in DELFT-MOR

Engineering model for sand transport: TRANSPOR 2000

Bodemtransportmetingen Grensmaas

Onderzoek naar zandtransport en kustmorfologische verschijnselen in het laboratorium

Measuring sediment transport in sand-bed rivers: Inventory of instruments and methods bed load transport suspendend load transport

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

The large oscillating water tunnel: Technical specifications and performances

Dwarstransportstudie voordelta: Een onderzoek naar profielontwikkelingen door dwarstransport in de Zeeuwse voordelta's als gevolg van gehele of gedeeltelijke afsluiting van de estuaria

Aggradation and Degradation of Alluvial-Channel Beds

The objectives of the present investigation were the determination of the characteristic parameters of morphological processes in alluvial channels. Special attention was directed toward the aggradation process due to total sediment-load augmentation and degradation due to either sediment-discharge diminution or base-level lowering. Linear and...

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...

Information on the Arnhem Sampler (BTMA)

The Subcommittee 6 of the Technical Committee 113 of the International Standardization Organization (ISO) is dealing with measurements of sediment transport in open channels. As a back-ground paper for TC113 this report is written on the BTMA, internationally named the Arnhem Sampler. The BTMA has been developped jointly by Rijkswaterstaat,...

Morphological computations

Lecture notes sediment transport in rivers, formulas and numerical models.

Sediment Transport: an Appraisal of Available Methods: VOLUME 1: Summary of Existing Theories: VOLUME 2: Performance of Theoretical Methods when Applied to Flume and Field Data

In 1972 Ackers and White (Refs 24 and 25) proposed a new sediment transport theory and tested the theory against f1ume data. This data consisted of about 1000 measurements with particle sizes in the range 0.04 < D(mm) < 5 and sediment specific gravities in the range 1.07 < s < 2.65. Subsequent phases in this investigation have included (i) the...