Golfvervorming bij een hoog voorland

Het rapport "Literatuuronderzoek bij een hoog voorland" bevat een systematische weergave van de bestaande kennis van het gedrag van golven in een bepaalde ondiepte-situatie. Die situatie betreft een tamelijk vlak, relatief hoog liggend voorland voor een kust met daar boven een geringe waterdiepte, en wel het gebied vanaf de lijn waar de golven...

The breaking of windwaves in deep water: Part I. Probalistic aspects : Part II. Observed breaking wave statistics

Part I Probabilistic aspects. An overview is given of literature on the statistics of breaking waves in open ocean. New approximations of the fraction of breaking waves and the distribution of breaking wave heights are presented and compared with results found in literature. Part II Observed breaking wave statistics. This part is dedicated to...

The influence of breaking waves on the vertical velocity distribution in the surf zone

In this report we describe the development and calibration of a model which predicts the vertical distribution of the horizontal velocities induced by waves, the so-called undertow. Location of interest is the nearshore region where the flow is induced by both breaking and non-breaking waves. The model consists out of three modules. The first...

Stability of stones in the surf zone

Much research has been done on the stability of stones in breaking waves, but up to now, most of these studies were based on experiments with slopes varying from 1: 1 to 1:7. The stability of stones on mild slopes, slopes not steeper than 1: 10, has not yet been researched very extensively. Applications of mild slopes in practice are for example...

Wave slamming forces on truss structures for wind turbines

Generally the foundations of offshore wind turbines are steel truss structures which are exposed to wave slamming forces due to breaking waves, typically plunging breaking waves in shallow water. Calculations show that the forces from the plunging breaking waves are governing the design responses of the structure and the foundations. However,...

Wave breaking induced drift: An experimental and theoretical prediction in deep-water waves

Accurately predicting the surface transport in the ocean is crucial for estimating the course of marine pollution, which is considered one of the most pressing environmental issues of the 21st century. In the ocean, floating marine pollution is transported by several mechanisms, including waves. Current models predicting the surface transport...

Hydrodynamic loading of breaking waves on offshore inspection platforms

The most violent breaking waves cause the largest platform forces at sea, however it is unknown which wave in a sea state leads to these forces if run-up is included. Offshore inspection platforms give access to wind turbine monopiles. They are positioned above mean sea level. Wave interaction with monopiles leading to runup causes vertical...