Journal ArticleDOI
Modelling non-cohesive suspended sediment transport in 2D vertical free surface flows
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TLDR
In this paper, a mathematical model for simulating suspended sediment transport under equilibrium and non-equilibrium situations is described using the hydrodynamic variable field obtained from a refined turbulent free surface flow model, which involves bed boundary conditions for either the sediment flux to or from the bed, or an estimated concentration level.Abstract:
The mathematical model for simulating suspended sediment transport under equilibrium and non-equilibrium situations is described. Using the hydrodynamic variable field obtained from a refined turbulent free surface flow model, the suspension transport model involves bed boundary conditions for either the sediment flux to or from the bed, or an estimated concentration level, which are tested. The Schmidt number variability is also studied for several particle types. Some 2D vertical test cases for equilibrium situations or non-equilibrium situations with net erosion or net deposition flux to the bed are presented, and the predicted development of the concentration profiles is compared with measurements.read more
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Three-Dimensional Mathematical Model of Suspended-Sediment Transport
Hongwei Fang,Guangqian Wang +1 more
TL;DR: In this article, the basic equations for a mathematical model of sediment-laden flow in a nonorthogonal curvilinear coordinate system were derived using a tensor analysis of two-phase flow and incorporate a natural variable-density turbulence model with nonequilibrium sediment transport.
Journal ArticleDOI
Three-dimensional computation of flow around groyne
Sylvain Ouillon,Denis Dartus +1 more
TL;DR: In this paper, a 3D numerical simulation of a steady, shallow turbulent flow around a groyne in a rectangular channel is presented, where a method used to track a moving surface boundary and to follow its evolution, using a one-phase 3D Reynolds solver with rigid grids, by means of a transient fraction of fluid or "porosity" field is applied.
Journal ArticleDOI
Impact of the Hoa Binh dam (Vietnam) on water and sediment budgets in the Red River basin and delta
TL;DR: In this paper, a 50-year data set of water discharge and suspended sediment concentration (1960-2010) was analyzed from a 50 years data set, and the distribution of water and sediment across the nine mouths of the delta was simulated using the MIKE11 numerical model before and after the dam settlement.
Journal ArticleDOI
Quo vadis sewer process modelling
TL;DR: A review of the current position with regard to sewer process modelling, highlighting areas where knowledge is still deficient, and where new opportunities and limitations are emerging, is given in this article.
Journal ArticleDOI
3D simulation of flow around a single spur dike with free-surface flow
TL;DR: In this paper, flow patterns around a single spur dike (also termed a groyne) with free-surface flow was simulated using a numerical model known as Fluent.
References
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Journal ArticleDOI
A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows
S.V. Patankar,D. B. Spalding +1 more
TL;DR: In this article, a general, numerical, marching procedure is presented for the calculation of the transport processes in three-dimensional flows characterised by the presence of one coordinate in which physical influences are exerted in only one direction.
Book
Turbulence Models and Their Application in Hydraulics
TL;DR: In this article, the authors provide an introduction to the subject of turbulence modelling in a form easy to understand for anybody with a basic background in fluid mechanics, and summarize the present state of the art.
Journal ArticleDOI
Sediment Transport, Part II: Suspended Load Transport
TL;DR: In this article, a method is presented which enables the computation of the suspended load as the depth-integration of the product of the local concentration and flow velocity, based on the calculation of the reference concentration from the bed-load transport.
Journal ArticleDOI
Modeling Suspended Sediment Transport in Nonequilibrium Situations
Ismail Celik,Wolfgang Rodi +1 more
TL;DR: In this article, a mathematical model for calculating suspended sediment transport in unidirectional channel flow under general, non-equilibrium conditions is presented, which consists of a flexible hydrodynamic component for calculating the flow field and the turbulence characteristics and a scalar transport model.
Journal ArticleDOI
Mathematical Modeling of Suspended Sediment in NonUniform Flows
TL;DR: In this article, a two-dimensional vertical mathematical model for suspended sediment is presented, which is based on the width-integrated convection-diffusion equation for the sediment particles including settling effects.
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