Experimental investigation of overflowing over river groyne exposed to primary ship-induced waves

Groynes in the Lower Elbe estuary in Germany are subject to attack from overflowing long-period primary ship-induced waves. Damage can occur on the crest and lee side of the structure due to the high turbulent overflowing flow velocities. An actual design tool for groynes exposed to overflowing primary ship waves is not yet present. Therefore,...

The effect of vessels on the flow pattern inside a groyne field: What is the influence of vessels on the flow properties inside a groyne field and in what way do the characteristics of the vessels influence this?

Due to river training in the past centuries, the bed level of the Waal started and is still decreasing by several centimetres a year. Erosion of the riverbed causes problems for objects underneath the riverbed like cables, pipelines and foundations of structures. Furthermore, some parts of the river are eroding at a higher velocity compared to...

Velocity measurements in and around a permeable breakwater

Laboratory measurements in the long wave flume of the Waterlab of TU Delft to capture and obtain simultaneous laboratory measurements of the main hydrodynamic parameters generated by the response of small model scale submerged permeable rubble mound trapezoidal breakwaters (SPBs) under wave action, focusing on the turbulent wave flow...