Searched for: subject:"fine%5C+sediments"
(1 - 12 of 12)
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van Maren, D.S. (author), Vroom, J. (author), Fettweis, M. (author), Vanlede, J.D.S.M. (author)
Despite availability of a large amount of observational data and modelling studies, the mechanisms maintaining the Turbidity Maximum in the Belgian-Dutch coastal zone around the port of Zeebrugge (Belgium) are insufficiently understood. In order to better understand the dynamics of this turbidity maximum we examine the role of baroclinic ...
journal article 2020
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Juez, Carmelo (author), Schärer, C. (author), Jenny, H. (author), Schleiss, A. J. (author), Franca, M.J. (author)
Overbank sedimentation is predominantly due to fine sediments transported under suspension that become trapped and settle in floodplains when high-flow conditions occur in rivers. In a compound channel, the processes of exchanging water and fine sediments between the main channel and floodplains regulate the geomorphological evolution and are...
journal article 2019
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Achete, F.M. (author)
Many estuaries are located in urbanized, highly engineered environments. Cohesive sediment plays an important role because of its affect on estuarine health and ecology. An important ecological parameter is the suspended sediment concentration (SSC) translated into turbidity levels and sediment budget. Veel estuaria zijn gelegen in...
doctoral thesis 2016
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Wan, Y. (author)
This study presented in this book investigates micro- and macro- scale physical processes of a large-scale fine sediment estuarine system with a moderate tidal range as well as a highly seasonal-varying freshwater inflow. Based on a series measured, experimented and modeled results, the research highlights that (i) along-channel fresh-salt...
doctoral thesis 2015
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Winterwerp, J.C. (author)
This paper describes results of the second part of a study on stratification effects by cohesive and noncohesive sediment. Winterwerp (2001) applied classical stratified flow theory implemented in a one-dimensional vertical numerical model (the 1DV POINT MODEL), showing that sediment-induced stratification effects may occur at already fairly...
journal article 2006
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Bruens, A.W. (author)
The deposition of cohesive sediments in estuarin and eoestal environments can lead to a range of managerial problems. To deal with these problems it is essential to understand the behaviour of cohesive sediment and its interaction with the flow field. During slack water, cohesive sediment is deposited and a Concentrated Benthic Suspension (CBS)...
report 2000
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Van der Ham, R. (author)
In 1993 an interdisciplinary research programme on the behaviour of mud in tidal waters was initiated by the Board of NWO-BOA. The programme aims at obtaining more detailed insight in the dominant processes that govern the transport behaviour of mud. These processes have strong time variability and therefore the general approach is to obtain...
report 1999
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Kranenburg, C. (author)
The Prandtl mixing-length model of turbulent exchange of mass and momentum is applied to calculate the entrainment of overlying water into a layer of suspended fine sediment at a horizontal bed. In the field the flow and turbulence in such a concentrated benthic suspension (CBS) are driven by a streamwise pressure gradient resulting from the...
report 1999
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Kranenburg, C. (author)
In quiescent water bodies that form part of estuarine or coastal water systems, such as harbours and access channels, fine sediments may deposit to form concentrated benthic suspensions (CBS). The flow velocities in these mud layers may become low, and the viscosities may become large, so that the Reynolds number decreases below a critical value...
report 1999
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Bruens, A.W. (author)
This report describes a classification of sediment-laden flows, which gives an overview of the different transport forms of fine sediment and the interactions of the different processes as acting in an estuary. At the outs et of the proposed classification a distinction in physical states of water-sediment mixtures is made. A water-sediment...
report 1999
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Kranenburg, C. (author)
Adopting a 1DV numerical model including the standard k-eps turbulence model, Winterwerp et al. (1999) calculated a saturation concentration for an initially uniform distribution of fine sediment concentration in steady flow. At concentrations exceeding the saturation concentration the concentration profile collapsed and all sediment was...
report 1998
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Kranenburg, C. (author)
The settling velocities of fine sediments can be determined using a sedimentation balance essentially consisting of a settling tube at the bottom of which the weight of the sediment deposited is measured as a function of time. The distribution of settling velocities then is calculated from an equation, which is known as Oden's formula. In this...
report 1991
Searched for: subject:"fine%5C+sediments"
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