针对超大型油轮在浅水环境下斜航运动问题进行研究，以提高船舶靠泊操纵性与性能优化。在验证数值方法的基础上，模拟超大型油轮在不同水深环境下以不同漂角低速靠泊航行的运动，对比分析无限水深和浅水水深环境中船体受到的阻力、横向力和转首力矩系数的变化，以及不同船速不同漂角下的船舶操纵水动力系数的特性，得到水动力系数随着水深和漂角的变化规律。研究结果表明，船舶水动力系数随着水深的减少而增大，且在低速情况下，漂角会使得浅水现象更加显著。
In order to improve ship maneuverability and optimize ship performance, the problem of oblique movement of very large tanker in shallow water environment is solved. On the basis of the numerical method,thesimulation of a very large tanker berthing motion at low speed at different drift angles in different water depths to release the heave and trim of the ship. The variation of the drag force, lateral force and turning moment coefficients of the hull in infinite water depth and shallow water depth, as well as the characteristics of the hydrodynamic coefficients of the ship maneuvering under different ship speeds and different drift angles, were compared and analyzed, and the variation law of hydrodynamic coefficients with water depth and drift angle was obtained.The results show that the ship's hydrodynamic coefficient increases with the decrease of water depth, and the drift Angle makes the shallow water effect more significant at low speed.
2023,45(21): 32-38 收稿日期：2022-4-13
DOI：10.3404/j.issn.1672-7649.2023.21.006
分类号：U661.1
作者简介：郑靓（1986-），女，硕士研究生，研究方向为船舶与海洋结构物流体力学性能
参考文献：
[1] ROYCHOUDHURY S, DASH A K, NAGARAJAN V, et al. CFD simulations of steady drift and yaw motions in deep and shallow water[J]. Ocean Engineering, 2017, 142: 161-184
[2] Wang H, Zou Z, Tian X. Computation of the viscous hydrodynamic forces on a KVLCC2 model moving obliquely in shallow water[J]. Journal of Shanghai Jiaotong University, 2009, 14(2): 241-244
[3] 牙政谋. 大型船舶浅水航行安全研究[J]. 中国水运, 2022(2): 117-119
[4] 伍海华, 邹早建. 船舶大漂角斜航运动水动力数值预报[J]. 水动力学研究与进展(A辑), 2019, 34(3): 339-345
[5] LARSSON L, A workshop on numerical ship hydrodynamics[J]. Farkostteknik, 2010.
[6] TOXOPEUS S L, SIMONSEN C D, GUILMINEAU E, et al. Investigation of water depth and basin wall effects on KVLCC2 in manoeuvring motion using viscous-flow calculations[J]. Journal of Marine Science and Technology, 2013, 18(4).
