低速横移動下の船体に働く流体力に関する研究-IV : 3次元CFD法を用いた浅水域の計算

概要

論文の詳細を見る
In order to know the hydrodynamic forces acting on a ship hull undergoing lateral berthing maneuver, it is necessary to develop a reliable estimation method of hydrodynamic force for accurate time-domain simulation of berthing process. In our previous reports, we have demonstrated the 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 potential flow theory. This paper deals with the influence of water depth on the hydrodynamic forces in shallow water. The CFD computation was made to investigate the hydrodynamic forces acting on a Wigley model moving laterally in the water depth/draft ratio H/d 2.0 and 1.5 respectively. The numerical solutions successfully captured not only the characteristics of hydrodynamic force but also some interesting features of transient flow for the shallow water. Also, these numerical results were in good agreement with experimental results by water tank model test.
社団法人日本航海学会の論文
2003-03-25