Underwater Sill Layout for Efficient Sediment Deflection

In ports with jetty-style berths, where the basins and navigation channel are placed in the surfzone, sedimentation problems are common. Installing an underwater sill (UWS) prevents the sedimentation of navigational channels and basins. The objective of this research is to investigate the influence of the UWS layout on the structure’s capacity to redirect flow to the side. The three evaluated models (rectangular, trapezoidal, and curve) demonstrated that the UWS with a curve layout has a better capacity for deflecting flow away from the structure. This was indicated by the closeness of the exponent to the theoretical value, n′≈1. © 2024, Institute of Technology PETRONAS Sdn Bhd.