Some people decide to start their own business instead of working for a company or organization. Do the advantages of this outweigh the disadvantage?

Offshore

aquaculture

has been recognized as an effective solution to the rapidly growing demand for seafood. While

this

approach may be costlier than the conventional ones, it still suggests a promising prospect regarding of the constrains of land-based and

nearshore

infrastructures and the resource shortage, so many countries are making efforts to develop the offshore

aquaculture

industry [1].

However

, the severe offshore environment e.g.

tidewater

low-lying coastal land drained by tidal streams

Tidewater

current, wind-induced surface current can lead to undesirable failure of production units.

Thus

, the reliability and durability of the unit should be taken into careful consideration during the process of design and assessment of its components and the fluid-structure interaction

(

Accept space

(

FSI

) simulation is a feasible method to achieve the target [2]. In

this

project, the

FSI

code CgLES-Y which combines large eddy simulation (LES), finite element method–discrete element method (FEM-DEM) and immersed boundary method (IBM) will be applied [3].

Firstly

, a simplified model of the

aquaculture

net cage will be simulated to verify the calculation reliability and help fundamentally understand the mechanism of hydrodynamic loading and structural dynamic response exposed to various typical wave-current conditions. The structure vibration and fatigue damage will

also

be

analyzed

examined carefully and methodically; broken down for consideration of constituent parts

analysed

based on the

FSI

simulation.

Secondly

, different types of detailed units will be simulated and structural optimization including the net, cage and mooring line configuration as well as material characteristics will be conducted to enhance the performance of the units according to the hydrology in specific areas.

Lastly

, simulations will be conducted on the

FSI

of components with damage at different scales, which is inevitable during service, based on previous studies. The morphology and stress of these components will be presented to help understand the failure tolerance of the units. Predictably, the results will not only help understand the

FSI

mechanism of offshore

aquaculture

units to promote its

advancement but

Accept comma addition

advancement, but

also

provide insights into the influence of hydrodynamics on the culture of fish.