Experimental and numerical investigations on hydrodynamic response of vessel-shaped semi-submersible aquacultural platform

IF 3.6 2区农林科学 Q2 AGRICULTURAL ENGINEERING

Aquacultural Engineering Pub Date : 2025-04-02 DOI:10.1016/j.aquaeng.2025.102540

Xiaodong Bai , Zhuang Lu , Hanbing Luo , Mingren Guo , Can Yang

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引用次数: 0

Abstract

The vessel-shaped semi-submersible aquacultural platform gains increasing attention in the aquacultural industry due to the high biomass production and structural strength. Understanding the dynamic characteristics is essential for structural optimization and operational efficiency. This study presents numerical and experimental analyses of the hydrodynamic responses of the vessel-shaped semi-submersible aquacultural platform under wave actions. In the experiments, the vessel-shaped semi-submersible aquacultural platform was modeled with a scale ratio of 1:32. Both regular and random wave tests are carried out in head seas and beam seas. The numerical simulation model of the vessel-shaped semi-submersible aquacultural platform is developed to investigate motion and mooring load characteristics. The time-domain model is formulated based on the potential theory for floating structures, the screen model for nets and the lumped-mass point for mooring lines. The aquacultural platform motions and mooring forces are numerically simulated and compared with the experimental results. The response time-series, spectra, and the statistics are compared, indicating that the proposed numerical model successfully predicts motions and mooring forces. Experimental and numerical results from both regular and random wave tests suggest that the platform experiences slight rotation motions. Different nets with different solidities are utilized to analyze the effect of the nets. The nets have limited influence on the motions of the aquacultural platform.

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来源期刊

Aquacultural Engineering 农林科学-农业工程

CiteScore

8.60

自引率

10.00%

发文量

审稿时长

>24 weeks

期刊介绍： Aquacultural Engineering is concerned with the design and development of effective aquacultural systems for marine and freshwater facilities. The journal aims to apply the knowledge gained from basic research which potentially can be translated into commercial operations. Problems of scale-up and application of research data involve many parameters, both physical and biological, making it difficult to anticipate the interaction between the unit processes and the cultured animals. Aquacultural Engineering aims to develop this bioengineering interface for aquaculture and welcomes contributions in the following areas: – Engineering and design of aquaculture facilities – Engineering-based research studies – Construction experience and techniques – In-service experience, commissioning, operation – Materials selection and their uses – Quantification of biological data and constraints