Hydrodynamics of submersible aquaculture cage system using numerical model
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A numerical model analysis was performed to analyze the motion and mooring tension response of submersible fish cage systems in irregular waves and currents. Two systems were examined: a submersible cage mooring with a single, high tension mooring and the same system, but with an additional three-point mooring. Using a Morison equation type model, simulations of the systems were conducted with the cage at the surface and submerged. Irregular waves (JONSWAP spectrum) with and without a co-linear current with a magnitude of 0.5m/s were simulated into the model as input parameters. Surge, heave and pitch dynamic calculations were made, along with tension responses in the mooring lines. Results were analyzed in both the time and frequency domains and linear transfer functions were calculated.
Abstract
A numerical model analysis was performed to analyze the motion and mooring tension response of submersible fish cage systems in irregular waves and currents. Two systems were examined: a submersible cage mooring with a single, high tension mooring and the same system, but with an additional three-point mooring. Using a Morison equation type model, simulations of the systems were conducted with the cage at the surface and submerged. Irregular waves (JONSWAP spectrum) with and without a co-linear current with a magnitude of 0.5m/s were simulated into the model as input parameters. Surge, heave and pitch dynamic calculations were made, along with tension responses in the mooring lines. Results were analyzed in both the time and frequency domains and linear transfer functions were calculated.
참고문헌 (15)
- DeCew, J., "Numerical and physical modeling of a modified gravity type cage and mooring system", IEEE J. Oceanic Eng, 30(1), pp.47~58 (2005)
- Fredriksson, D.W., "Fish cage and mooring system dynamics using physical and numerical models with field measurements", Aqua. Eng, 27(2), pp.117~270 (2003)
- Fredriksson, D.W., "The heave response of a central spar fish cage. Transactions of the ASME", J. of Off. Mech. and Arct. Eng, 25, pp.242~248 (2003)
- Fredriksson, D.W., "Fluid dynamic drag of a central spar cage open ocean aquaculture IV, in: Mississippi-Alabama Sea Grant Consortium", pp.151~168 (2001), Ocean Springs
- Fredriksson, D.W., "Open ocean fish cage and mooring system modeling. Fisheries Dynamics 2003", pp.109~122 (2003), National Fisheries Research and Development Institute
- Fredriksson, D.W., "Moored fish cage dynamics in waves and currents. Special Issue on Open Ocean Aquaculture Engineering", IEEE J. Oceanic Eng, 30(1), pp.28~36 (2005)
- Goda, Y., "Random seas and the design of maritime structures", pp.443~ (2000), World Scientific Publishing Company
- Haritos, N, "Modelling the response of cable elements in an ocean environment", Fin. Elem. in Analysis and Des, 19, pp.19~32 (1992)
- Hasselmann,K., "Measurements of wind-wave growth and swell decay during the Joint North Sea Wave Project(JONSWAP)", Hydrographische Zeitschrift Reihe, 12, pp.95~ (1973)
- Kim,T.H., "Mooring loads analysis of submersible aquaculture cage system using finite element method", J. Kor. Fish. Tech, 42(1), pp.44~53 (2006)
- Morison, J.R., "The forces exerted by surface waves on piles. Petroleum Transactions", American Inst. of Mining Eng, pp.149~157 (1950)
- Ochi, M.K., "Ocean waves: The Stochastic approach" (1998), Cambridge University Press
- Shore Protection Manual, "US Army engineer waterways experiment station. 4th ed., 2 Vols. Coastal Engineering Research Center", pp.432~ (1984), Government Printing Office
- Tsukrov, I., "Finite element modeling of net panels using consistent net elements", Ocean Eng, 30, pp.251~270 (2003)
- Tsukrov, I, "Numerical modeling of nonlinear elastic components of mooring systems", IEEE J. Oceanic Eng, 30(1) (2005)