Experimental study on interaction between flow current and cage structure

In this study, the experiments of a 1:30 scale model of a flexible circular net cage with the mooring system are conducted in the circulating flume. For geometry and motion measurements, a non-invasive stereo imaging method is employed, which use three CCD camera systems to take the 2D photos and then transform to 3D visional sketches. Results of this experiment show that it has highly mutual dependency between the tension force and the deformation of a flexible net structure. Furthermore, the evolution change of three-dimensional deformation and motion of the net cage are also investigated.