Laboratory experiments on the stability of concrete cubes: a comparison of testing methodologies

An important step in the design process of breakwaters is the laboratorial tests which show the performance of the breakwater. One of the important aspects in the performance is the stability of the armour layer. A common methodology for breakwater testing is a method in which the design wave conditions are simulated in four steps of 1000 or...

The current deflecting wall in a tidal harbour with density influences

Siltation is a serious problem for harbours situated on tidal rivers and estuaries. Maintenance dredging is necessary on a regular basis to guarantee safe navigation and is often a large cost factor. A means to prevent sediment from entering a harbour is the Current Deflecting Wall (CDW), which passively alters the water exchange at the harbour...

Long wave generation and behavior on a plane sloping beach

This thesis studies the relation between short wave groups and long wave motion in the shore-normal case on a uniformly sloping bottom. The short wave groups can be described through two time scales; the time scale of the individual waves and the time scale of the groups. The energy of the individual waves is dissipated through wave breaking and...

Scour underneath submarine pipelines

This report deals with the physical experiments on scour underneath submarine pipelines, carried out as part of the MaTS project on the stability of submarine pipelines. Moreover, these experiments, which have been carried out in the laboratory for fluid mechanics of the Department of Civil Engineering of the Delft University of Technology, are...