With the development of ocean engineering and demand for safety of the ship and offshore structures, the transportation and storage of liquid have become an important issue nowadays. Furthermore, in order to improve the hydrodynamic performances of the ship and offshore structures, the anti-rolling liquid tanks are often taken into consideration. The internal-external coupling flow effect is vital for the ship and liquid tank designs, especially when the external wave frequency is close to the natural frequency of liquid tanks with a certain filling ratio, large amplitude motions may occur, which is dangerous to some extent. In this paper, the simulation-based-design method is introduced at first, and the verification of the numerical calculation of internal-external coupling flow with liquid tanks is done then. Finally, the filling ratio of the anti-rolling liquid tank and the installation angle of the anti-rolling fins are optimized to reduce the roll motion amplitude of the hull section to the greatest extent under the combined action of the two anti-rolling devices. Optimization results show that the roll motion amplitude of box-shaped hull section can be successfully reduced by reasonably designing the two anti-rolling devices, which can be a reference to the future design of the fishing ship and other ships with anti-rolling devices.

随着海洋工程的发展和对船舶和海上结构物安全的要求，液体的运输和储存已成为当今的一个重要问题。此外，为了提高船舶和海上结构物的水动力性能，常考虑采用减摇液舱。内外耦合流动效应对船舶和液舱设计至关重要，特别是当外波频率接近具有一定填充比的液舱固有频率时，可能会发生大振幅运动，具有一定的危险性. 本文首先介绍了基于仿真的设计方法，然后对液罐内外耦合流动的数值计算进行了验证。最后，减摇液舱的填充率和减摇鳍的安装角度进行了优化，在两个减摇装置的共同作用下，最大程度地降低了船体截面的横摇幅度。优化结果表明，通过合理设计两种减摇装置，可以成功减小箱形船体截面的横摇幅度，可为今后渔船及其他带减摇装置船舶的设计提供参考。