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Open Access

ARTICLE

Smoothed-Particle Hydrodynamics Simulation of Ship Motion and Tank Sloshing under the Effect of Regular Waves

Mingming Zhao, Jialong Jiao*
School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, 510641, China
* Corresponding Author: Jialong Jiao. Email: jiaojl@scut.edu.cn

Fluid Dynamics & Materials Processing https://doi.org/10.32604/fdmp.2023.043744

Received 11 July 2023; Accepted 26 October 2023; Published online 23 November 2023

Abstract

Predicting the response of liquefied natural gas (LNG) contained in vessels subjected to external waves is extremely important to ensure the safety of the transportation process. In this study, the coupled behavior due to ship motion and liquid tank sloshing has been simulated by the Smoothed-Particle Hydrodynamics (SPH) method. Firstly, the sloshing flow in a rectangular tank was simulated and the related loads were analyzed to verify and validate the accuracy of the present SPH solver. Then, a three-dimensional simplified LNG carrier model, including two prismatic liquid tanks and a wave tank, was introduced. Different conditions were examined corresponding to different wave lengths, wave heights, wave heading angles, and tank loading rates. Finally, the effects of liquid tank loading rate on LNG ship motions and sloshing loading were analyzed, thereby showing that the SPH method can effectively provide useful indications for the design of liquid cargo ships.

Keywords

LNG carrier; tank sloshing; seakeeping; inner and external fluid coupling; Smoothed Particle Hydrodynamics (SPH)

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