After his MSc in Hydraulic Engineering at Delft University of Technology, Bas accepted a PhD position at the Dredging Group in Delft. His work combines a numerical and experimental approach to describe spillage when cutting rock with cutter suction dredges. The experiments are designed to validate the numerical model. He therefore designed a simplified cutter to measure the fluid velocities and particle positions. For the model, he implemented a method for modelling big chips of rock in a rotating cutter using relatively coarse grids, allowing the model to simulate rock trajectories in the cutter with decent computation times.
Articles By Bas Nieuwboer
Depending on its size and installed power, a Cutter Suction Dredger is capable of cutting a wide range of soil types. Although precise and relatively efficient, a CSD can spill significantly. The authors propose a preliminary model which describes spillage due to centrifugal advection.