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Publications
Ji, J., Zhou, LL., Liu, B. and Guedes Soares, C. (2025), Experimental and numerical investigation of a bottom-fixed net cage under regular waves, Ocean Engineering, Vol. 341, 122795.
An experimental study and a numerical simulation of a bottom-fixed cage equipped with double-layer nets are conducted to describe the wave field characteristics under regular waves. The accuracy of the numerical simulation method is rigorously validated by comparing simulation outcomes with experimental data under identical wave conditions. The effects of wave period, wave height, angle of attack and even the absence of the net on the wave field induced around the cage are studied. The results demonstrate that when the wave period is kept constant, the wave transmission coefficient decreases as the wave height increases. This suggests that the wave attenuation effect of the net structure becomes more significant with increasing wave height. In contrast, when the wave height remains unchanged, the transmission coefficient increases as the wave period becomes longer. The wave direction change from 0° to 22.5° mainly leads to relatively small differences in transmission coefficients inside the net cage. The configuration of the double-layer side net shows better wave attenuation performance than the single-layer side net. The influence of the bottom net on wave attenuation is relatively insignificant. These conclusions can offer insights for the structural configuration and hydrodynamic optimisation of aquaculture platforms and cages.
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