Finite element modeling of net panels using a consistent net element

Tsukrov, Igor; Eroshkin, Oleg; Fredriksson, David W.; Swift, Michael; Çelıkkol, Barbaros

doi:10.1016/s0029-8018(02)00021-5

Cited by 236 publications

(82 citation statements)

References 8 publications

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“…Several authors have used this method to study the effect of currents and waves on the deformation and hydrodynamic resistance of these systems (Tsukrov et al, 2000(Tsukrov et al, , 2002(Tsukrov et al, , 2005Fredriksson et al, 2003;Suhey et al, 2005;Huang et al, 2006) Therefore, the objective of this study was to analyze the stresses on a submersible longline culture system subjected to the oceanographic conditions present in exposed areas, using dynamic simulation based on FEM.…”

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confidence: 99%

Stress analysis of a submersible longline culture system through dynamic simulation

López

Hurtado

Gómez

et al. 2017

lajar

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ABSTRACT. This study analyzed the stresses on a submersible longline culture system subjected to both parallel and perpendicular oceanographic conditions of 0.5 and 1 m s -1 current velocity with 2 to 5 m wave height, using a dynamic simulation model based on the finite element method. Results indicated that when the culture system is submerged, the stress on mooring lines, the main line and whip lines decreases until a 55%. Additionally, changing the direction of the current and waves results in differences ranging from -59% to 312%. It was established that in an environment involving high-energy events, it is structurally possible to submerge the longline culture system in a direction parallel to oceanographic parameters, which could have positive implications for reducing the loss of cultivated biomass and improving productive conditions.

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Section: ___________________mentioning

confidence: 99%

Stress analysis of a submersible longline culture system through dynamic simulation

López

Hurtado

Gómez

et al. 2017

lajar

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“…Finite element analysis was applied to study the performance of surface and submerged constructions and a simplified formulation for the simulation of the nets is presented. An improved formulation was presented by Tsukrov et al (2003) offering a consistent net element which is generally capable to model fluid action and net inertia of fishing nets and allows to simulate environmental loadings originating from currents, waves or other mechanical impacts. Motivated by the impact of storm-waves to aquaculture facilities, a lump-mass method was used to study to the effects of currents to net-cage systems and good agreement was found between the numerical results and prior experimental findings (Huang et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Technological Approaches to Longline- and Cage-Based Aquaculture in Open Ocean Environments

Goseberg

Chambers

Heasman

et al. 2017

Aquaculture Perspective of Multi-Use Sites in the Open Ocean

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As the worldwide exploitation rate of capture fisheries continues, the development of sustainable aquaculture practices is increasing to meet the seafood needs of the growing world population. The demand for aquatic products was historically satisfied firstly by an effort to expand wild catch and secondly by increasing land-based and near-shore aquaculture. However, stagnation in wild catch as well as environmental and societal challenges of land-based and near-shore aquaculture have greatly promoted efforts to development farming offshore technologies for harsh, high energetic environments. This contribution thus highlights recent technological approaches based on three sample sites which reach out from sheltered near-shore aquaculture sites to sites with harsh wave/current conditions. It compares and evaluates existing technological approaches based on a broad literature review; on this basis, we then strongly advocate for presently available aquaculture technologies to merge with future offshore structures and platforms and to unveil its added value through synergetic multi-use concepts. The first example

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“…Several different methods have been proposed to construct mathematical models of general net structures, and some of these are focusing on trawl nets. Tsukrov, Eroshkin, Fredriksson, Swift, and Celikkol (2003) proposed a numerical model to analyze the hydrodynamic response of net panels to environmental loading with the concept of consistent finite element method. Priour (2005) developed a finite element method for simulating flexible structures made of nets, cables and bars, such as fishing gears and fish farming cages, which focus on a specific triangular element devoted to net modeling.…”

Section: Introductionmentioning

confidence: 99%

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Tang¹,

Dong²,

Xu³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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Trawling energy consumption is significantly affected by the drag on the trawl, which is determined by a series of design and operational variables. In this study, a fluid-net interaction model of a trawl system is developed to understand the hydrodynamic behavior of trawl. The k-ω shear stress turbulent (SST) model is applied to simulate the flow field through the net cage, and the large deformation nonlinear structural (LDNS) model is adopted to conduct the structural analysis of the flexible net cage. To validate the numerical model, the drag forces on the single circle cylinder and the net panel are calculated and compared with the experimental data. The results indicate that the numerical model can be applied to calculate the drag force on the net panel. Then, the numerical model is adopted to calculate the drag force on the trawl, and the effect of twine diameter on the drag force acting on the trawl net is analyzed. In addition, an existing equation for analyzing the drag force on trawl net was expanded to consider the effect of twine diameter using this numerical model.

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Finite element modeling of net panels using a consistent net element

Cited by 236 publications

References 8 publications

Stress analysis of a submersible longline culture system through dynamic simulation

Stress analysis of a submersible longline culture system through dynamic simulation

Technological Approaches to Longline- and Cage-Based Aquaculture in Open Ocean Environments

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