TY - JOUR
T1 - Effects of waves and currents on gravity-type cages in the open sea
AU - Huang, Chai Cheng
AU - Tang, Hung Jie
AU - Liu, Jin Yuan
N1 - Funding Information:
This study was supported financially by the National Science Council (NSC95-2221-E-110-135), and the Fisheries Agency, Council of Agriculture of Taiwan. The authors would like to express profound thanks for their financial support.
PY - 2008/4
Y1 - 2008/4
N2 - The effects of waves with a uniform current on marine aquaculture gravity-type cages were analyzed using a numerical model previously validated by physical model tests. The present analysis employs a numerical algorithm to study the dynamic behaviors of the net-cage system when impinged upon by surface waves from various angles over a uniform current. The maximum tension of the mooring lines and the minimum volume reduction coefficients of the rearing system were analyzed. We found that the current-induced effects on the net-cage system were more important than those due to waves only. We conclude that farming sites should not be situated in areas where the current speed exceeds 1 m/s, unless technological devices are available to overcome serious net-cage volume deformation. Furthermore, we recommend that, whenever possible, the combined effects of various oblique waves and currents be carefully examined before a system is installed. Finally, the ideal range of water depth for net-cage implementation in the open sea is between 30 and 50 m.
AB - The effects of waves with a uniform current on marine aquaculture gravity-type cages were analyzed using a numerical model previously validated by physical model tests. The present analysis employs a numerical algorithm to study the dynamic behaviors of the net-cage system when impinged upon by surface waves from various angles over a uniform current. The maximum tension of the mooring lines and the minimum volume reduction coefficients of the rearing system were analyzed. We found that the current-induced effects on the net-cage system were more important than those due to waves only. We conclude that farming sites should not be situated in areas where the current speed exceeds 1 m/s, unless technological devices are available to overcome serious net-cage volume deformation. Furthermore, we recommend that, whenever possible, the combined effects of various oblique waves and currents be carefully examined before a system is installed. Finally, the ideal range of water depth for net-cage implementation in the open sea is between 30 and 50 m.
UR - https://www.scopus.com/pages/publications/39749126728
UR - https://www.scopus.com/pages/publications/39749126728#tab=citedBy
U2 - 10.1016/j.aquaeng.2008.01.003
DO - 10.1016/j.aquaeng.2008.01.003
M3 - Article
AN - SCOPUS:39749126728
SN - 0144-8609
VL - 38
SP - 105
EP - 116
JO - Aquacultural Engineering
JF - Aquacultural Engineering
IS - 2
ER -
