低速横移動下の船体に働く流体力に関する研究-III : 3次元CFD法を用いた基礎的検討

概要

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The berthing maneuver of ships is usually carried out in the low lateral moving speed and in the short distance to a berth. But hydrodynamic forces acting on the ship hull under the berthing maneuver have quite complex and transitional characteristics. In our previous paper using 2-D CFD technique, it has been demonstrated that feasibility and validations of CFD technique for time-domain simulation of transient flows induced by lateral ship motion. And we have been also proposed the simplified formulas for the added mass coefficients based on the results calculated by potential flow theory. In this study, 3-D CFD technique was employed for basic considerations of the hydrodynamic forces especially to estimate the drag force acting on a 3-D plate moving laterally in deep water. The numerical solutions successfully captured not only the characteristics of the transitional hydrodynamic force but also some interesting features of the transient flow. These computational results were in good agreement with preliminary experimental results.
社団法人日本航海学会の論文
2002-03-25