Sutrench-model: two-dimensional vertical mathematical model for sedimentation in dredged channels and trenches by currents and waves
van Rijn, L.C.; Tan, G.L. (1985). Sutrench-model: two-dimensional vertical mathematical model for sedimentation in dredged channels and trenches by currents and waves. Rijkswaterstaat Communications, 41. Rijkswaterstaat: the Hague. 63 pp.
The construction of a tunnel or a pipeline or a new harbour generally requires the dredging of a channel or trench in a river or estuary. Because of serious sedimention problems which did occur in some large tunnel trenches dredged in the Netherlands, a mathematical model for sedimentation predictions was developed. The purpose of such a model should be the estimation of the sedimentation in relation to the channel resulted in a two- dimensional vertical mathematical model for suspended sediment (SUTRENCH-model). A detailed description of the SUTRENCH-model is given. The flow field in a channel oblique to the flow is described. The influence of the most important hydraulic parameters on the predicted sedimentation rates is shown. Finally, an extensive verification analysis concerning flume experiments and field studies is given (pipe line channel in the Western Scheldt Estuary, the Netherlands; tunnel trench near Rotterdam; navigation channel near Korea).
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