TLP에 작용하는 비선형 유체하중 특성에 관한 CFD 연구

Abstract

For investigation about the interaction among the column members of the TLP in currents and the non-linear force acting on the TLP in waves, the CFD study method were performed in this study. In this study, the drag forces accordance with the column locations of the TLP by the CFD method were shown differences by the interaction among the columns. In case of the study about the non-linear force, the results by the CFD were compared with the potential theory results. The trends of the wave forces were shown differences between the potential theory and the CFD method by the simulation about wave run-up in the CFD method. As a results, the necessity about use of different drag coefficients according to the columnlocations are suggested for the drag force calculation by using the Morison equation. Also, importance of the wave run-up calculation by the CFD method are confirmed for the calculation about the wave force.