Numerical Modeling of the Interaction of Moving Fish Nets and Fluid
The significant difference in length scales between the flow around a moving fish net and the flow around each twine of the net prevents the resolution of the complete structure within a discrete fluid domain. In this article, this issue is overcome by calculating the net and fluid dynamics separate...
Published in: | Journal of Offshore Mechanics and Arctic Engineering |
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Online Access: | https://hdl.handle.net/11250/2984293 https://doi.org/10.1115/1.4051088 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2984293 2023-05-15T14:21:42+02:00 Numerical Modeling of the Interaction of Moving Fish Nets and Fluid Martin, Tobias Wang, Gang Bihs, Hans 2022 application/pdf https://hdl.handle.net/11250/2984293 https://doi.org/10.1115/1.4051088 eng eng ASME Notur/NorStore: NN2620K Norges forskningsråd: 267981 Journal of Offshore Mechanics and Arctic Engineering. 2022, 144 (1), . urn:issn:0892-7219 https://hdl.handle.net/11250/2984293 https://doi.org/10.1115/1.4051088 cristin:1941082 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no This is the authors' accepted manuscript to an article published by ASME. CC-BY 8 144 Journal of Offshore Mechanics and Arctic Engineering 1 Havbruk Aquavulture Fiskeoppdrett Fish farming VDP::Marin teknologi: 580 VDP::Marine technology: 580 Peer reviewed Journal article 2022 ftntnutrondheimi https://doi.org/10.1115/1.4051088 2022-03-16T23:38:48Z The significant difference in length scales between the flow around a moving fish net and the flow around each twine of the net prevents the resolution of the complete structure within a discrete fluid domain. In this article, this issue is overcome by calculating the net and fluid dynamics separately and incorporate their interaction implicitly. The forces on the net are approximated using a screen force model, and the motion of the net is computed with a lumped mass method. Here, a linear system of equations is derived from the dynamic equilibria and kinematic relations. The net model is coupled to the computational fluid dynamics (CFD) solver reef3d, which solves the incompressible Navier–Stokes equations using high-order finite differences in space and time. Several numerical calculations are provided, and the comparison of loads and velocity reduction with available measurements indicates the good performance of the proposed model. acceptedVersion Article in Journal/Newspaper Arctic NTNU Open Archive (Norwegian University of Science and Technology) Journal of Offshore Mechanics and Arctic Engineering 144 1 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
topic |
Havbruk Aquavulture Fiskeoppdrett Fish farming VDP::Marin teknologi: 580 VDP::Marine technology: 580 |
spellingShingle |
Havbruk Aquavulture Fiskeoppdrett Fish farming VDP::Marin teknologi: 580 VDP::Marine technology: 580 Martin, Tobias Wang, Gang Bihs, Hans Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
topic_facet |
Havbruk Aquavulture Fiskeoppdrett Fish farming VDP::Marin teknologi: 580 VDP::Marine technology: 580 |
description |
The significant difference in length scales between the flow around a moving fish net and the flow around each twine of the net prevents the resolution of the complete structure within a discrete fluid domain. In this article, this issue is overcome by calculating the net and fluid dynamics separately and incorporate their interaction implicitly. The forces on the net are approximated using a screen force model, and the motion of the net is computed with a lumped mass method. Here, a linear system of equations is derived from the dynamic equilibria and kinematic relations. The net model is coupled to the computational fluid dynamics (CFD) solver reef3d, which solves the incompressible Navier–Stokes equations using high-order finite differences in space and time. Several numerical calculations are provided, and the comparison of loads and velocity reduction with available measurements indicates the good performance of the proposed model. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Martin, Tobias Wang, Gang Bihs, Hans |
author_facet |
Martin, Tobias Wang, Gang Bihs, Hans |
author_sort |
Martin, Tobias |
title |
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
title_short |
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
title_full |
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
title_fullStr |
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
title_full_unstemmed |
Numerical Modeling of the Interaction of Moving Fish Nets and Fluid |
title_sort |
numerical modeling of the interaction of moving fish nets and fluid |
publisher |
ASME |
publishDate |
2022 |
url |
https://hdl.handle.net/11250/2984293 https://doi.org/10.1115/1.4051088 |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
8 144 Journal of Offshore Mechanics and Arctic Engineering 1 |
op_relation |
Notur/NorStore: NN2620K Norges forskningsråd: 267981 Journal of Offshore Mechanics and Arctic Engineering. 2022, 144 (1), . urn:issn:0892-7219 https://hdl.handle.net/11250/2984293 https://doi.org/10.1115/1.4051088 cristin:1941082 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no This is the authors' accepted manuscript to an article published by ASME. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1115/1.4051088 |
container_title |
Journal of Offshore Mechanics and Arctic Engineering |
container_volume |
144 |
container_issue |
1 |
_version_ |
1766294414453374976 |