刘义1,2,邹早建2,3,郭海鹏2

1. 中国船舶及海洋工程设计研究院， 上海 200011； 2. 上海交通大学 船舶海洋与建筑工程学院， 上海 200240； 3. 上海交通大学 海洋工程国家重点实验室， 上海 200240

出版日期:2019-04-28发布日期:2019-04-28
通讯作者:邹早建，男，教授，博士生导师，电话（Tel.）：021-34204255；E-mail：zjzou@sjtu.edu.cn.
作者简介:刘义（1988-），女，山东省临沂市人，博士后，主要研究方向为基于CFD的船舶操纵性预报.
基金资助:国家自然科学基金项目（51779140）

Numerical Simulation of Oblique-Towing Test for a Fully Appended Ship Model Based on Two Propeller Modelling Methods

LIU Yi1,2,ZOU Zaojian2,3,GUO Haipeng2

1. Marine Design and Research Institute of China, Shanghai 200011, China; 2. School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;3. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Online:2019-04-28Published:2019-04-28

摘要/Abstract

摘要： 应用计算流体动力学(CFD)方法数值模拟约束模试验以获取船舶操纵水动力导数，是建立船舶操纵运动数学模型的有效方法.在数值模拟全附体约束模试验中，选定合适的螺旋桨建模方法，是既快速又准确地计算船体水动力的关键.应用CFD方法求解雷诺平均Navier-Stokes(RANS)方程，分别采用体积力法和基于实桨的滑移网格法对螺旋桨进行处理，数值模拟了全附体KCS船模的斜拖试验；通过水动力数值计算结果与基准试验数据的比较，验证了所采用的数值方法的可靠性.对两种螺旋桨建模方法的结果进行比较可以发现，综合考虑计算成本和计算精度，体积力法可以代替实桨方法进行全附体约束模斜拖试验数值模拟.
关键词: 斜拖试验, 雷诺平均Navier-Stokes(RANS)方程, 体积力法, 滑移网格法
Abstract: It is an effective method to establish the mathematical model of ship maneuvering motion by using CFD (computational fluid dynamics) method to simulate the captive model tests to obtain the hydrodynamic derivatives. When the captive model tests of a fully appended ship are numerically simulated, the key issue is to select a suitable propeller modeling method to compute the hydrodynamic force on the ship efficiently and accurately. Using CFD method, the oblique-towing tests of a fully appended KCS ship model are numerically simulated by solving the Reynolds-averaged Navier-Stokes (RANS) equations. Both the body force method and the sliding mesh method based on real propeller are used to deal with the rotating propeller. By comparing the computed hydrodynamic forces with the benchmark data, the numerical method is verified. The results of the two methods for dealing with the propeller are compared, and it shows that considering the computation efficiency and accuracy, the body force method can replace the real propeller method to simulate the oblique-towing test of fully appended ships.
Key words: oblique-towing test, Reynolds-averaged Navier-Stokes (RANS) equations, body-force me-thod, sliding mesh method


PDF全文下载地址:

点我下载PDF