This study simulates flow hydraulics, sediment transport, and bed deformation in a large-amplitude meandering flume using CCHE2D, a depth-averaged two-dimensional hydrodynamic and sediment transport model. The planform of the flume is a sine-generated channel with a deflection angle 110° in terms of experiments by Termini (2009). The bed material in the flume is treated as uniform grain-sized sediment and simulated by Wu (2001)'s sediment transport module. Changes in bed elevation are calculated by solving the sediment mass conservation equation. The model is calibrated by comparing the computed results with the observed bed deformation after 150min. In the numerical experiment, the most pronounced erosion and deposition areas initially occur right above the apex and gradually extend towards downstream with time. Besides, most sediment removed from the outer bank deposits at the next bend, but the front crosses the centerline around the apex to complement the scouring.
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