Morphological modelling of the gravel revetment on artificial composite beaches

This thesis discusses the morphological modelling of the gravel revetment on artificial composite beaches. A composite beach is a combination of a sandy lower beach and a gravel upper beach. These beaches are found in nature, but can also be created artificially by placement of a gravel structure on a sandy beach. Artificial composite beaches...

Dynamics of a submarine pipeline by excited by waves

A submarine pipeline on the seabed will adjust its shape to the sea bottom profile. The sea bottom profile is not perfectly flat. One can encounter irregularities in the sea bottom due to slopes, lumps and gullies. These irregularities are already present at the time the pipeline is installed. Because the pipeline has a certain bending stiffness...

Experimental research on hydrodynamic coefficients of sand-roughened, rigid, circular cylinders near a plane boundary in oscillating fluid

The hydrodynamic coefficients of a sand-roughened horizontal cylinder have been determined for various values of the relative roughness and relative gap height between the cylinder and the plane boundary. The Morison equation was used to describe the inline force signal. The transverse force was analysed with respect to the peak values during a...