Large scale model test investigation on wave run-up in irregular waves at slender piles

An experimental large scale study on wave run-up generated loads on entrance platforms for offshore wind turbines was performed. The experiments were performed at Grosser Wellenkanal (GWK), Forschungszentrum Küste (FZK) in Hannover, Germany. The present paper deals with the run-up heights determined from high speed video recordings. Based on the measured run-up heights different types of prediction formulae for run-up in irregular waves were evaluated. In conclusion scale effects on run-up levels seem small except for differences in spray. However, run-up of individual waves is difficult to predict due to high importance of wave form.

► We analyzed laboratory data from the large scale flume. ► We use the predicted formula to calculate the run-up height. ► Individual waves, Run- up 2% and Run-up maximum were analyzed.