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Experimental and numerical study of a cylinder passing through fluidized natural mud Flanders Hydraulics
Manoeuvring behaviour of vessels in muddy waters Flanders Hydraulics
The manoeuvring behaviour of vessels is highly affected by their small under keel clearance in access channels and harbours. If sedimentation and the formation of mud layers occur in these areas the manoeuvring behaviour becomes even more challenged, especially because the exact location of the bottom is not unequivocally determined. In such areas the nautical bottom definition, as stated by PIANC, should be applied. Over the past decades ...
Practical squat assessment for a ship manoeuvring in muddy environments Ghent University Flanders Hydraulics
Prediction of the forces acting on container carriers in muddy navigation areas using a fluidization parameter Ghent University
To assess the safety of navigation in muddy areas, a comprehensive captive manoeuvring model test program was executed. Based on the results of this experimental program, a four-quadrant manoeuvring model was built with a separate set of coefficients for each combination of under-keel clearance and mud layer characteristics. The disadvantage of this model is that only conditions corresponding with the experimental ones can be simulated. A more ...
Assessment of the potential of radiography and ultrasonography to record flow dynamics in cohesive sediments (mud) Flanders Hydraulics Ghent University
The possible use of both radiography and ultrasonography to visualise flow dynamics in cohesive sediments, also known as fluid mud, has been assessed. Ultimately, these techniques are intended to enable the application of Particle Image Velocimetry (PIV) in experimental fluid dynamics using such fluid mud. This research takes into account the specific requirements arising from this objective. Those requirements are primarily penetration depth, ...
Experimental study of a cylinder towed through natural mud Ghent University
With the rapid increase in ship size, the definition of the nautical bottom is becoming more crucial for ports and waterways authorities worldwide. Previous theoretical and experimental research has demonstrated that under certain conditions it is possible to sail through fluidized mud. However, in most numerical models, the complex rheological behaviour of the natural mud is simplified and treated as a Newtonian fluid. To better understand the ...
Evaluation of measuring instruments for the determination of mud characteristics: sub report 2. Overview of measuring instruments and analysis of measurement campaign 3 with regard to density instruments Flanders Hydraulics
As part of the optimisation of the follow-up of dredging works, the Department of Mobility and Public Works, Maritime Access division, has purchased a number of density-related measuring instruments. These instruments represent the various measuring principles available on the market for the measurement of in-situ density of (dredged) mud: “With which density instrument (or combination of instruments), with which accuracy and with which ...
Integraal Plan Boven-Zeeschelde: sub report 11. Effect of B-alternatives on sand transport Flanders Hydraulics
A sand transport model for the Scheldt estuary was made in the framework of the integrated plan Upper Sea Scheldt. This model is called “Scaldis Sand” and was able to reproduce sand transport rates measured along the Sea Scheldt and was as such validated. In this report this model is used to simulate some of the Balternatives.
The B-alternatives are three bathymetrical variations on the Scheldt estuary plan form in 2050 to allow larger ...
The B-alternatives are three bathymetrical variations on the Scheldt estuary plan form in 2050 to allow larger ...
Studie naar meettechnieken voor het onderzoeken van de opbouw van sliblagen in het Deurganckdok: deelrapport 1. Bundeling van de belangrijkste resultaten uit 3 masterproeven uitgevoerd op de Universiteit Antwerpen Flanders Hydraulics
Binnen het gebied van de haven van Antwerpen worden quasi continu onderhoudsbaggerwerken uitgevoerd om de gewenste diepgang in de vaargeul en langs terminals te kunnen garanderen. Deze werken vinden hoofdzakelijk plaats in de Schelde, maar ook achter de sluizen vinden regelmatig baggerwerken plaats. Sinds de opening van het Deurganckdok in 2005 vormt de afzetting en de ontwikkelingen in de karakteristieken van het afgezette slib ook hier een ...