Author(s): Tian Jin; Alemu Tezera Dessie; Emmanuel Mignot; Nicolas Riviere; Tom De Mulder

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Keywords: Open-channel confluence; Equilibrium bed; Large Eddy Simulation

Abstract: 3D numerical simulations are performed to study the flow in a T-shaped, lab-scale confluence above four fixed beds, corresponding to the initial flat bed and the quasi-equilibrium bed observed in two lab experiments with a movable bed and a different discharge ratio between the confluent flows. For a number of time-averaged flow features predicted in the simulations, it is verified whether they can be linked to the location, orientation and horizontal extent of the scour holes observed in the experiments.

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1761-cd

Year: 2025