Cristin-resultat-ID: 1819488
Sist endret: 15. juli 2020, 13:07
Resultat
Faglig kapittel
2019

Application of FhSim for the analysis of environmental loads on a complete fish-farm system

Bidragsytere:
  • Andrei Tsarau og
  • David Kristiansen

Bok

MARINE 2019 - Computational Methods in Marine Engineering VIII
ISBN:
  • 978-84-949194-3-5

Utgiver

International Center for Numerical Methods in Engineering (CIMNE)
NVI-nivå 1

Om resultatet

Faglig kapittel
Publiseringsår: 2019
ISBN:
  • 978-84-949194-3-5

Klassifisering

Fagfelt (NPI)

Fagfelt: Konstruksjonsfag
- Fagområde: Realfag og teknologi

Beskrivelse Beskrivelse

Tittel

Application of FhSim for the analysis of environmental loads on a complete fish-farm system

Sammendrag

Fish farming at exposed locations requires robust and reliable structures that facilitate sustainable, safe and efficient production. There is also a need for proper numerical tools and analysis methods that can be utilised for designing such structures and evaluating their performance under increased exposure. Some recent advances in developing and applying such tools are highlighted in the present paper. An analysis of the mooring loads of acomplete multi-cage fish farm exposed to currents and waves is presented. This analysis is based on numerical simulations performed with FhSim, which is a software framework developed at SINTEF Ocean for simulating marine systems and flexible net structures in the time domain. Previously, FhSim has been used to simulate loads on a single net cage, and the results have shown a good agreement with experimental data. In the present work, a numerical model of a conventional fish farm with multiple interconnected net cages was built, and the effects of environmental conditions on the mooring loads and their distribution in the mooring system were investigated. Additionally, the sensitivity of the mooring loads to various parameters of the model were studied. The results have shown that for fish farms operating in marine areas with high current velocities (over 0.5 m/s) under typical wave conditions, the mooring loads are dominated by the current-induced forces rather than the wave forces. Consequently, the assumptions and uncertainties associated with the model for viscous drag on the flexible net structure have the strongest effect on the mooring forces and thus the results of this analysis. Other considered uncertainties associated with the structural parameters of the model did not show such a strong effect on the predicted results. Thus, to significantly improve the present model, more research should be done to refine the load model for net structures.

Bidragsytere

Andrei Tsarau

  • Tilknyttet:
    Forfatter
    ved Havbruk ved SINTEF Ocean
Aktiv cristin-person

David Kristiansen

  • Tilknyttet:
    Forfatter
    ved Havbruk ved SINTEF Ocean
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Resultatet er en del av Resultatet er en del av

MARINE 2019 - Computational Methods in Marine Engineering VIII .

Bensow, R; Ringsberg, J. 2019, International Center for Numerical Methods in Engineering (CIMNE). Vitenskapelig antologi/Konferanseserie
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