Laboratory Studies On Transverse Mixing In Rivers

Holley, Edward R.; Abraham, G.

doi:10.1080/00221687309499775

Cited by 28 publications

(20 citation statements)

References 2 publications

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“…proposed by Holley and Abraham (1973), where ε T (m) is the transverse dispersivity and c is an empirical constant. Holley and Abraham (1973) found an approximate value of 0Ð03 for c for the River Waal.…”

Section: Model Input Datamentioning

confidence: 99%

Modelling floodplain sedimentation using particle tracking

Thonon

Jong

Perk

et al. 2006

Hydrological Processes

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Abstract:Both climate change and river rehabilitation projects induce changes in floodplain sedimentation. Notably along the lower River Rhine, the sediment deposition patterns and rates are subject to change. To assess the magnitude of these changes, we developed the MoCSED model, a floodplain sedimentation model within a geographical information system for the lower Rhine River. We based MoCSED on the 'method of characteristics' (MoC), a particle tracking method that minimizes numerical dispersion. We implemented the MoCSED model in the PCRaster dynamic modelling language. The model input comprises initial suspended sediment concentrations, water levels, flow velocities, and longitudinal and transverse dispersivities. We used a combination of the Krone and Chen concepts to calculate the subsequent sedimentation (SED routine). We compared the model results with sediment trap data for the Bemmel floodplain along the Dutch Waal River during the 2003 inundation. This comparison showed that MoCSED was able to simulate the pattern of sediment deposition. In addition, the model proved to be an improvement in comparison with a conventional raster-based floodplain sedimentation model for the lower River Rhine. In future, MoCSED may serve well to study the impact of a changing discharge regime due to climate change and floodplain rehabilitation plans on deposition of sediments.

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Section: Model Input Datamentioning

confidence: 99%

Modelling floodplain sedimentation using particle tracking

Thonon

Jong

Perk

et al. 2006

Hydrological Processes

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“…The results obtained by Holley [4] The tracers used included dye solutions (Rhodamine B, methylene blue, Na-Fluoresceine) and occasionally a solution of sodium chloride. The tracer was injected as a point-, or vertical line source at a steady rate, virtually at the same velocity as that of the ambient flow.…”

Section: Comparison Of Numerical and Observation Resultsmentioning

confidence: 99%

“…(1) it appears logical to trace the streamlines of the vector field J (these will be termed mass streamlines) and the expressions thereof corresponding to -Eqs. (3) and (4). Adopting a similar approach ( …”

Section: The Equation Of Turbulent Diffusionmentioning

confidence: 99%

“…In most of the cases steady flow and pollutant release can be also assumed. All these assumptions allow description of the mixing process by the two-dimensional, steady-state equation of turbulent dispersion as it was done by Holley [4], Yctsukara and Sayre (20] and others.…”

Section: Introductionmentioning

confidence: 99%

“…Here the development of a method of sufficiently general validity is considered desirable. The perhaps most frequently adopted approach is the change of moment method generalized by Holley [4], [5].…”

Section: Introductionmentioning

confidence: 99%

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An Approach to the Study of Transverse Mixing in Streams

Somlyódy

1982

Journal of Hydraulic Research

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FOREWORDThe mixing of pollutants in rivers, lakes, and reservoirs because of turbulence and spatial non-uniformities in the velocity field considerably influences the fate of these materials . Mixing is an important factor when controlling water quality independently , whether it be a question of the deoxygenation, thermal pollution, contamination by heavy metals , or eutrophication -issues that have been central research themes of the Resources and Environment Area at IIASA over the past few years. This article considers transverse mixing in rivers, a phenomenon of great importance for wide rivers. A new approach is presented and tested on the basis of a wide range of experiments, from laboratory flumes to large natural rivers such as the Danube. JANUSZ KINDLER Chairman Resources and Environment Area AN APPROACH TO THE STUDY OF TRANSVERSE MIXING IN STREAMS

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Hydraulic Modelling Approaches for Ecohydraulic Studies: 3D, 2D, 1D and Non‐Numerical Models

Tonina

Jorde²

2013

Ecohydraulics

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Laboratory Studies On Transverse Mixing In Rivers

Cited by 28 publications

References 2 publications

Modelling floodplain sedimentation using particle tracking

Modelling floodplain sedimentation using particle tracking

An Approach to the Study of Transverse Mixing in Streams

Hydraulic Modelling Approaches for Ecohydraulic Studies: 3D, 2D, 1D and Non‐Numerical Models

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