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Sedimentation Modeling of Impoundment Terraces
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1978
Year
Sedimentation ModelingEngineeringGeomorphologySediment AnalysisHydraulic EngineeringSimulation ModelImpound-ment TerracesSediment QualitySediment-water InteractionEngineering GeologyHydrologySedimentologySediment TransportCoastal ManagementSediment ConcentrationExperimental GeomorphologyEnvironmental EngineeringCivil EngineeringSediment ProcessSedimentation
ABSTRACT A simulation model for predicting sediment con-centration in water discharged from impound-ment terraces is described. The model is based on the assumption that sediment concentration of the dis-charge water equals that of the water at the bottom of the impoundment near the outlet. Stokes' law is used to compute fall velocity of sediments suspended in the impoundment. Sediment concentration at the bottom of the pondage area is based on fall velocities of sediment, initial sediment concentration, initial sediment-size distribution, and the existence of an initial homogeneous sediment-water mixture within the impoundment. Sediment concentration in discharge from a single impoundment was predicted with acceptable accuracy. Under limited field testing, the model apparently gave valid results.