Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage

The number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth, as well as more weather-exposed locations, are taken into use. As the net cages continue to increase in size, so does the material costs....

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Main Authors: O Myrli, H Khawaja
Format: Article
Language:English
Published: MULTIPHYSICS 2019-03-01
Series:International Journal of Multiphysics
Online Access:http://journal.multiphysics.org/index.php/IJM/article/view/453
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author O Myrli
H Khawaja
author_facet O Myrli
H Khawaja
author_sort O Myrli
collection DOAJ
description The number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth, as well as more weather-exposed locations, are taken into use. As the net cages continue to increase in size, so does the material costs. The design of the sea cages should be modified for safe and reliable use in remote offshore locations. Fish farms located in more exposed areas will be subject to more energetic waves and stronger currents, which will cause large net deformations. This is a challenge as fish welfare depends on a certain minimum volume within the net cage. Changing and maintaining net cages are some of the main expenses for fish farms. If the lifetime of the net cages is extended by introducing stronger, longer lasting materials, the overall costs of the nets will be reduced. The traditional nets are produced in nylon, while the promising solid PET-wire has been introduced to the aquaculture industry. In this paper, we introduce polyurethane to the aquaculture net cages, which will be studied together with nylon and PET-wire. The study is carried out using fluid-structure interaction (FSI) simulation, computational fluid dynamics (CFD) weakly coupled with structure mechanics (FEM). ANSYS® software is employed in the study. We will look at the materials that show the most promising results for aquaculture purposes.
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spelling doaj.art-698b5f732a51488488c9f85964e7fbc22023-09-02T20:28:35ZengMULTIPHYSICSInternational Journal of Multiphysics1750-95482048-39612019-03-0113110.21152/1750-9548.13.1.97382Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net CageO MyrliH KhawajaThe number of good sites in less exposed locations for aquaculture farming is limited. Trends are now that the fish cages are increasing in both width and depth, as well as more weather-exposed locations, are taken into use. As the net cages continue to increase in size, so does the material costs. The design of the sea cages should be modified for safe and reliable use in remote offshore locations. Fish farms located in more exposed areas will be subject to more energetic waves and stronger currents, which will cause large net deformations. This is a challenge as fish welfare depends on a certain minimum volume within the net cage. Changing and maintaining net cages are some of the main expenses for fish farms. If the lifetime of the net cages is extended by introducing stronger, longer lasting materials, the overall costs of the nets will be reduced. The traditional nets are produced in nylon, while the promising solid PET-wire has been introduced to the aquaculture industry. In this paper, we introduce polyurethane to the aquaculture net cages, which will be studied together with nylon and PET-wire. The study is carried out using fluid-structure interaction (FSI) simulation, computational fluid dynamics (CFD) weakly coupled with structure mechanics (FEM). ANSYS® software is employed in the study. We will look at the materials that show the most promising results for aquaculture purposes.http://journal.multiphysics.org/index.php/IJM/article/view/453
spellingShingle O Myrli
H Khawaja
Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
International Journal of Multiphysics
title Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
title_full Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
title_fullStr Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
title_full_unstemmed Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
title_short Fluid-Structure Interaction (FSI) Modelling of Aquaculture Net Cage
title_sort fluid structure interaction fsi modelling of aquaculture net cage
url http://journal.multiphysics.org/index.php/IJM/article/view/453
work_keys_str_mv AT omyrli fluidstructureinteractionfsimodellingofaquaculturenetcage
AT hkhawaja fluidstructureinteractionfsimodellingofaquaculturenetcage