Numerical simulation on plastic based fish lure using fluid structure interaction approach
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Date
2019-05
Authors
Muhamad Nurhaziq Bin Shamratul Nahar
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Abstract
The fishing lure was first developed to attract the attractions of fish by their design, unique shape and movements. Soft plastic lures are among the widely used and categorized as popular artificial lures because the capability to imitate natural baits in variant kind of forms. The lure is moving in both horizontal and vertical lateral directions that produce wave frequency to trick the fish to attack the lure. They were several studies conduct toward the fishing lure and it was done through field lab research. However, the research done on fishing lures through numerical simulation has not been reported. Therefore, this research is a pioneer study conduct on numerical simulation of soft plastic-based lure. The objective of this research is to identify the behaviour of the soft plastic base fish lure by changing the water stream velocity, density of the lure and design modification by utilizing the numerical simulation approach through fluid-structure interaction (FSI). It was done by using ANSYS Workbench 19.0 by using duo systems which are Transient Structural Analysis and FLUENT system. Two-way fluid-structure interaction (FSI) used as a physical process of lure movement requires an analysis that simultaneously runs the structural and fluid-based analysis. The velocity and density of the lures which exhibit excellent properties are at a water flow velocity of 0.5 m/s and the density value of 1625 kg/m3. Both properties provided stable lateral directions and smooth displacement with constant amplitude, resulting in lifelike oscillatory deformation. Results revealed that proper design toward the lures and how to create a good design in order to increase the attraction from predators toward lures. Manufacturing design that has been studied found that the production of wave frequency highly generated by the oscillatory deformation at the tail. The use of numerical simulation approach was able to provide guidance toward the real research work done in the lab.