First research outputs of Theme A and E are becoming available, some of which we developed with other research projects.
Found 68 Outputs - Page 5 of 7
Human interventions in a bifurcating river system: Numerical investigation and uncertainty assessment
For intervention design in a bifurcating river, it is important to consider the entire river system and explicitly account for a range of discharge conditions to avoid unwanted water level increases throughout the river system.
05/10/2021 by Matthijs R.A. Gensen et al.
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Using data analysis, expert elicitation and hydraulic models to quantify uncertainties in a bifurcating river
The uncertainties of these three methods must be taken into account in the assessment of flood risks.
01/07/2020 by Matthijs R.A. Gensen et al.
View detailsContains: Conference proceedings
Optimal planning of flood defence system reinforcements using a greedy search algorithm
We develop and validate greedy search algorithm that can find (near-)optimal combinations of reinforcement measures for dike segments. The approach was applied to an ongoing reinforcement project, and it was found to reduce investment costs by ~40% compared to the conventional approach.
01/03/2021
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Flood risk reduction by parallel flood defences
Double dikes should be assessed using the transmitted loads of parallel defences rather than the failure of individual defences. The case study of this parallel defence consists of a low dike landward of a tall dike at the coast that, although designed with multi-functional purpose via a culvert, has a negligible improvement in flood protection.
01/08/2021
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Temporal Development of Backward Erosion Piping in a Large-Scale Experiment
Monitoring the development of piping in a test dike on a large scale, for better estimation of time to failure and to validate piping models.
02/02/2021 by Joost Pol et al.
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Feedback mechanism in bifurcating river systems
We quantify the water level variations for high and low roughness in the main channel when considering or not the feedback mechanism between the discharge at the bifurcation and the water levels.
22/11/2024 by Matthijs R.A. Gensen et al.
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Compensating human interventions at a river bifurcation
Impact of river interventions under a range of discharges and roughness conditions to possibly counteract the feedback mechanism between water levels and discharge at a bifurcating river.
11/02/2021 by Matthijs R.A. Gensen et al.
View detailsContains: Conference proceedings
Modelling the wave overtopping flow over the crest and the landward slope of grass-covered flood defenses
A new detailed model that is able to calculate the load of the overtopping waves on the grass cover and provides insights in how the load changes along the profile.
02/07/2020 by Vera van Bergeijk et al.
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An analytical model of wave overtopping flow velocities on dike crests and landward slopes
New formulas for the flow velocity over the dike crest and landward slope that can be applied to a wide range of geometries and dike covers.
01/07/2019
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Failure probability by wave overtopping over grass-covered and damaged dikes
We calculate the failure probability by wave overtopping of grass-covered and damaged dikes and show that damages to the dike cover, such as an animal burrowing or an erosion hole, can increase the failure probability significantly.
03/03/2021 by Vera van Bergeijk et al.
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Page 5 of 7