Study on hydrodynamic performance of a set-net in current based on numerical simulation and physical model test. (1st January 2020)

• Record Type: Journal Article
• Authors: Wan, Rong; Guan, Qinglong; Li, Zengguang; Hu, Fuxiang; Dong, Shuchuang; You, Xinxing
• Is Part Of: Ocean engineering. Volume 195(2020)
• Publication Date: 2020-01-01
• Subjects: Set-net -- Finite element method -- Model test -- Numerical simulation; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2019.106660
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: The hydrodynamic performance of a large scale set-net in current was studied by means of numerical simulations based on finite element method and physical model test based on Tauti's law. The equilibrium configuration and the tension distribution of the set-net was calculated, and a series of physical model tests were conducted at flume tank. The results showed the tension of the main mooring line was greater than other cables and was about 70 kN at the current velocity of 1 kn. With the increasing current velocity, the float rope of the set-net was sinking, and the sink rope was floating upward. When the current velocity was less than 0.7 kn, the set-net can operate well accounting for the opened normally shape of its mesh. The simulated results of the set-net hydrodynamic performance were very close to the experimental results from the model test. This study could reveal the tension of mooring line and the deformation of the set-net for the design and application of the fishing gear in the future. Highlights: A large scale set-net was designed and its hydrodynamic performance was studied. Verifying the accuracy of numerical simulation comparing with physical model test. Calculating shape and tension distribution of the set-net using the numerical simulation.