Deposition of Nonuniform Sediments

UNDER CONSTRUCTION

Experiment Setup

Figure 1. Schetch showing the flume experiment setup of the Seal et al. (1995) (from Wu 2007).

The deposition experiment was carried out in a flume 45 m long and 0.305 m wide, with an initial bed slope of 0.002. A tailgate was used to keep the downstream at a constant water level of 0.45 m. The inflow water flux was set to 0.049 m³/s. A slightly bimodal mixture of sediment ranging in size from 0.125 to 0.64 mm was fed into the flume entrance at a rate of 5.65 kg/min.

Figure 2. Initial grain size distribution of the Seal et al. (1995) experiment.

Results

Figure 2. Comparison of measured and computed bed elevations and water levels for the Seal et al. (1995) experiment.

Reference

• Seal, R., Parker, G., Paola, C., and Mullenbach, B. (1995) "Laboratory experiments on downstream fining of gravel, narrow channel runs 1 through 3: supplemental methods and data." External Memorandum M-239, St. Anthony Falls Hydraulic Laboratory, University of Minnesota, Minneapolis.

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