직렬 배치된 두 부유체에 작용하는 조류력 및 풍력 특성에 관한 수치해석 연구

Abstract

In this study, the characteristics of the current and wind forces acting on two floating bodies were numerically investigated usinga commercial CFD software, STAR-CCM+. In the numerical analyses, LNGC was located right behind FSRU under uniform current or windconditions. Steady calculations were carried out using a Reynolds averaged Navier？Stokes (RANS) solver and the realized k-epsilon model. First, thecurrent coefficients of FSRU based only the CFD were compared with the model test data. Through this comparison, the present numerical modelsand mesh systems were indirectly verified. Next, computations for FSRU and LNGC in a uniform current were performed using different relativepositions. It was found that the current coefficients were great affected by the longitudinal positions. Finally, the wind forces acting on FSRU andLNGC in tandem configurations were studied. The focus was on the shielding effects due to the aerodynamic interactions between FSRU andLNGC.