Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Analysis of submerging characteristics and stability of the model submersible fish cage operated by buoyancy control

부력 제어식 가두리 모형의 부침 특성 및 안정성 해석

  • Lee, Gun-Ho (Aquaculture Industry Division, West Sea Fisheries Research Institude, NFRDI) ;
  • Cha, Bong-Jin (Fisheries Engineering Division, NFRDI) ;
  • Jeong, Seong-Jae (Aquaculture Industry Division, East Sea Fisheries Research Institude, NFRDI)
  • 이건호 (국립수산과학원 서해수산연구소 해역산업과) ;
  • 차봉진 (국립수산과학원 시스템공학과) ;
  • 정성재 (국립수산과학원 동해수산연구소 해역산업과)
  • Received : 2011.09.15
  • Accepted : 2012.02.08
  • Published : 2012.02.28
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Abstract

This study aims to analyze the performance of a submersible fish cage which was designed for developing an economical cage system can be applied in korean aquaculture environment easily. To analyze the performance of the designed cage a model test was carried out. In the test, inclination changes of the upper frame and mooring tensions of model cage were measured during the submerging and surfacing motion in still water and wave condition (period: 2s, wave height: 0.1, 0.2, 0.3m). As a result, in the still water condition the model cage kept horizontal balance and inclination degree of the upper frame was about $1^{\circ}$. In the wave condition, the model cage showed bilateral symmetric up-and-down motion but the average inclination degree of the upper frame was about $0^{\circ}$. When the model cage reached at a depth of 1m, the up-and-down motion of the cage was decreased by 12% compared with that of at the surface (period 2s, height 0.3m). In the same wave condition, the maximum and average line tension under the bottom position were about 8% and 11% respectively compared with that of at surface.

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References

  1. DeCew, J., I. Tsukrov, A. Risso, M.R. Swift and B. Celikkol, 2010. Modeling of dynamic behavior of a single-point moored submersible fish cage under currents. Aquacult. Eng., 43 (2), 38-45. https://doi.org/10.1016/j.aquaeng.2010.05.002
  2. Fredriksson, D.W., M. Erik, B. Kenneth, M.R. Swift and B. Celikkol, 2000. Open ocean aquaculture engineering: system design and physical modeling. Mar. Technol. Soc. J., 34 (1), 41-52. https://doi.org/10.4031/MTSJ.34.1.5
  3. Fredriksson, D.W., M.R. Swift, J.D. Irish, I. Tsukrov and B. Celikkol, 2003. Fish cage and mooring system dynamics using physical and numerical models with field measurements. Aquacult. Eng., 27 (2), 117-146. https://doi.org/10.1016/S0144-8609(02)00043-2
  4. Fredriksson, D.W., J. DeCew, M.R. Swift, I. Tsukrov, M.D. Chambers and B. Celikkol, 2004. The design and analysis of a four-cage grid mooring for open ocean aquaculture. Aquacult. Eng., 32 (1), 77-94. https://doi.org/10.1016/j.aquaeng.2004.05.001
  5. Fredriksson, D.W., J.C. DeCew, and Tsukrov, M.D., 2007. Development of structural modeling techniques for evaluating HDPE plastic net pens used in marine aquaculture. Ocean Eng., 34 (16), 2124-2137. https://doi.org/10.1016/j.oceaneng.2007.04.007
  6. Huang, C.C., H.J. Tang and J.Y. Liu, 2008. Effects of waves and currents on gravity-type cages in the open sea. Aquacult. Eng., 38 (2), 105-116. https://doi.org/10.1016/j.aquaeng.2008.01.003
  7. Huguenin, J.E. and F.J. Ansuini, 1978. A review of the technology and economics of marine fish cage systems. Aquaculture, 15 (2), 151-170. https://doi.org/10.1016/0044-8486(78)90060-1
  8. Jensen, O., A.S. Wroldsen, P.F. Lader, A. Fredheim and M. Heide, 2007. Finite element analysis of tensegrity structures in offshore aquaculture installations. Aquacult. Eng., 36 (3), 272-284. https://doi.org/10.1016/j.aquaeng.2007.01.001
  9. Kim, J.O. and H.I. Shin, 1996. Studies on the compressed air submersible fish cage system－I. Bull. Kor. Soc. Fish. Tech., 32 (2), 117-124.
  10. Kim, T.H., 2006. Mooring loads analysis of submersible aquaculture cage system using finite element method. J. Kor. Soc. Fish. Tech., 42 (1), 44-53. https://doi.org/10.3796/KSFT.2006.42.1.044
  11. Kim, T.H. and K.U. Yang, 2007. Numerical analysis on the submerging characteristics of submersible fish cage system operated by compressed air. J. Kor. Soc. Fish. Tech., 43 (1), 38-48. https://doi.org/10.3796/KSFT.2007.43.1.038
  12. Zhao, Y.P., T.J. Xu, G.H. Dong and Y.C. Li, 2010. Numerical simulation of a submerged gravity cage with the frame anchor system in irregular waves. Journal of Hydrodynamics, 22 (5), 416-420.

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