Numerical study on the hydrodynamic forces on a ship berthing to quay by taking free-surface effect into account

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• 作者：Huaming Wang ; Xuhui Li ; Lin Chen ; Xiangjie Sun
• 关键词：Berthing maneuver ; Overset grid ; RANS ; Transient flow ; Numerical simulation
• 刊名：Journal of Marine Science and Technology
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：21
• 期：4
• 页码：601-610
• 全文大小：2,107 KB
• 刊物类别：Engineering
• 刊物主题：Automotive and Aerospace Engineering and Traffic
  Engineering Fluid Dynamics
  Engineering Design
  Offshore Engineering
  Mechanical Engineering
  
• 出版者：Springer Japan
• ISSN：1437-8213
• 卷排序：21

文摘

In the present study, numerical simulation of the berthing maneuver of a ship in the prescribed translational motion is performed. The transient viscous flow and hydrodynamic forces on the hull are calculated by solving the unsteady Reynolds-Averaged Navier–Stokes equations in overset grid system, and the free surface is captured using volume-of-fluid (VOF) approach. The present numerical results have been compared with previous computational results by Toda and available experimental data respectively. Since the effects of the quaywall and free surface are taken into consideration in the present study, it is found that the agreement is significantly better than that resulting from Toda’s 3D CFD based approach. Then the effects of various standoff distances between the ship and quaywall on the lateral forces are investigated. Meanwhile, the detailed transient flow features around the berthing ship are obtained, which are helpful to understand the interactional effects between the ship and quaywall. The present results may provide helpful guidance for vessels’ safe maneuvering in berthing motion and the design of fender system in the quay.