CFD Simulations of Self-Propulsion and Turning Circle Maneuver up to 90º of Ship in Waves

IF 1.3 4区工程技术 Q3 ENGINEERING, CIVIL

Journal of Ship Research Pub Date : 2020-08-24 DOI:10.5957/JOSR.09180083

Cong Liu, Jianhua Wang, D. Wan

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引用次数: 7

Abstract

In the present work, a Reynolds-Averaged Navier-Stokes (RANS)-overset method is used to numerically investigate self-propulsion and turning circle maneuver in waves for a container ship. A computational fluid dynamics (CFD) solver naoe-FOAM-SJTU is used for the numerical computations of the fully appended Duisburg Test Case ship model. Overset grids are used to handle themotions of the ship hull appendedwith the propeller and the rudder. Open source toolbox waves2Foam is used to prevent wave reflection in the computational domain. The current numerical method is validated by comparing the ship speed in the self-propulsion case between CFD and Experimental Fluid Dynamics (EFD). Predicted ship 6-DOF motions, hydrodynamic forces, free surfaces, and inflow of the propeller are presented. The propulsion characteristic is mainly studied. Assuming the thrust identification method works even in unsteady conditions, the wake fraction and propulsion efficiency are discussed. The effect of orbital motion of water particle and ship motion on the propulsion performance are identified. In conclusion, the present RANS-overset method is a reliable approach to directly simulate self-propulsion and turning circle maneuver in waves.

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船舶在波浪中自推进和90º转弯机动的CFD模拟

本文采用reynolds - average Navier-Stokes (RANS)-overset方法对集装箱船在波浪中自推进和回转机动进行了数值研究。采用计算流体力学(CFD)求解器naoe-FOAM-SJTU对全附加杜伊斯堡试验船模型进行了数值计算。倒置网格是用来处理船体的运动附加的螺旋桨和方向舵。开源工具箱waves2Foam用于防止计算域中的波反射。通过CFD和实验流体动力学(EFD)对自推进情况下船舶航速的比较，验证了现有数值方法的有效性。给出了预测的船舶六自由度运动、水动力、自由面和螺旋桨入流。主要研究了其推进特性。假设推力识别方法即使在非定常条件下也有效，讨论了尾流分数和推进效率。确定了水粒子轨道运动和船舶运动对推进性能的影响。综上所述，本文提出的ranss -overset方法是直接模拟船舶在波浪中自推进和回转机动的可靠方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Ship Research 工程技术-工程：海洋

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

6 months

期刊介绍： Original and Timely technical papers addressing problems of shipyard techniques and production of merchant and naval ships appear in this quarterly publication. Since its inception, the Journal of Ship Production and Design (formerly the Journal of Ship Production) has been a forum for peer-reviewed, professionally edited papers from academic and industry sources. As such, it has influenced the worldwide development of ship production engineering as a fully qualified professional discipline. The expanded scope seeks papers in additional areas, specifically ship design, including design for production, plus other marine technology topics, such as ship operations, shipping economic, and safety. Each issue contains a well-rounded selection of technical papers relevant to marine professionals.