Review of Suspended Sediment Transport Mathematical Modelling Studies

This paper reviews existing studies relating to the assessment of sediment concentration profiles within various flow conditions due to their importance in representing pollutant propagation. The effects of sediment particle size, flow depth, and velocity were considered, as well as the eddy viscosity and Rouse number influence on the drag of the particle. It is also widely considered that there is a minimum threshold velocity required to increase sediment concentration within a flow above the washload. The bursting effect has also been investigated within this review, in which it presents the mechanism for sediment to be entrained within the flow at low average velocities. A review of the existing state-of-the-art literature has shown there are many variables to consider, i.e., particle density, flow velocity, and turbulence, when assessing the suspended sediment characteristics within flow; this outcome further evidences the complexity of suspended sediment transport modelling.

Automated summary

This paper reviews existing studies on the assessment of sediment concentration profiles in different flow conditions. It considers various factors such as sediment particle size, flow depth, velocity, eddy viscosity, and Rouse number. The review also discusses the minimum threshold velocity required to increase sediment concentration and the bursting effect. The complexity of suspended sediment transport modeling is further evidenced by the consideration of multiple variables in assessing suspended sediment characteristics within flow.