Author(s): Jesus Macias-Lezcano; Toni Llull; Jochen Aberle
Linked Author(s): Jochen Aberle
Keywords: No Keywords
Abstract: In this work, a set of laboratory experiments to study the temporal development of the scour induced by a ship propeller model over a non-cohesive sediment bed is presented. By changing the propeller type, its rotational speed, the bed and wall clearance distances, and the bed-sediment, different boundary conditions were tested. The results show a consistent trend between the measured maximum scour depth and the wall and bed clearance distances. The dependence of the maximum scour depth on the propeller rotational speed is also consistent among the experiments. In addition, the scour geometry is analysed from the relationship between the main dimensions of the scour hole and the eroded volume. The obtained data will be used to derive an equation to estimate the temporal development of the maximum scour depths induced by ship propellers for cases, in which a closed-type quay wall is located in front of the propeller plane.
Year: 2024