Hydrodynamic characteristics of the aluminum alloy net panel in regular waves: An experimental study

IF 4.3 2区农林科学 Q2 AGRICULTURAL ENGINEERING Aquacultural Engineering Pub Date : 2025-03-10 DOI:10.1016/j.aquaeng.2025.102531

Yu Lei , Weidong Li , Xiang Yuan Zheng , Xiao Cai , Shan Gao , Huadong Zheng , Sheng Zhang , Xin Liu

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Abstract

Copper alloy nets have attracted more and more attention in marine aquaculture, due to their better performance to resist biofouling and corrosion. In the present study, a series of laboratory experiments are conducted to investigate the hydrodynamic characteristics of the chain-link type alloy nets in waves. The wave elevations at different downstream locations of the nets and the wave forces on the downstream net panel are measured to investigate the shielding effects of the upstream aluminum alloy nets. The wave transmission and shielding coefficients under different wave heights, wave periods, and immersion depths are derived. The experimental data show that the wave transmission coefficient fluctuates around 1 (1 ± 0.04), whether only a single net or two parallel nets are placed in water, and the shielding coefficient also fluctuates around 1 (1 ± 0.07) under different conditions. Both two coefficients have weak correlation with wave heights, wave periods and immersion depths of the net panel. It indicates that the shielding effects of such metal nets are negligible. To obtain the empirical hydrodynamic coefficients through test data, a user-friendly numerical optimization scheme is developed. The optimized hydrodynamic coefficients can well predict the wave force on the frame and the nets.

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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