해상풍력발전기 Substructure 개발 및 유지관리 기술 연구

This paper is aimed to investigate influence and combined wave-current interactions, stemming from tide-dominated current effects on the scour developments around offshore support structure foundation by using 1;40 prototype scale, especially by means of numerical investigations with real Korea West coast sea state conditions. The scour around the tripod pile type offshore wind turbine foundation exposed to wave and current will be conducted in an appropriate test flume with the movable bed experiment. Based on the analysis from the former experimental results, the suitable scour protection of tripod pile type structure foundation will be proposed to the impact of scour. Finally, two kinds of scour protection test will be conducted and found to be effective in preventing scour around tripod pile type offshore wind turbines at water depth ranging 20-30m. The data gained from the experiments and the in-situ measurements will later be used for the calibration and verification of the numerical CFD model that will be used for the analysis of the scour phenomena and protection.