Experimental Study of An Aquaculture Net Cage in Waves and Current  

作　　者：David KRISTIANSEN Pal LADER Фsten JENSEN David FREDRIKSSON 

机构地区：[1]SINTEF Fisheries and Aquaculture [2]United States Naval Academy

出　　处：《China Ocean Engineering》2015年第3期325-340,共16页中国海洋工程（英文版）

基　　金：funded by the European Union’s 7th Framework to the Prevent Escape Project(Grant No.226885);by the Norwegian Research Council’s"Havbruk"Programme to the SECURE Project(Grant No.184974/S40)

摘　　要：Model experiments of a floating fish cage subjected to waves and current have been performed. The objective was to study the dynamic behaviour of the fish cage model in waves and current. The fish cage model was composed of a model net, a flexible floating collar of the circular plastic type and a weight system. It was found that there are many wave periods in which cancellation of the wave-induced forces on the model occur. These cancellation wave periods are within the range of dimensioning wave periods commonly used for testing of fish farm structures and hence are important to be aware of. Large deformations of the net under realistic wave and current conditions were observed, where contact between the net and other parts of the structure were identified. This may cause damages to the net due to abrasion.Model experiments of a floating fish cage subjected to waves and current have been performed. The objective was to study the dynamic behaviour of the fish cage model in waves and current. The fish cage model was composed of a model net, a flexible floating collar of the circular plastic type and a weight system. It was found that there are many wave periods in which cancellation of the wave-induced forces on the model occur. These cancellation wave periods are within the range of dimensioning wave periods commonly used for testing of fish farm structures and hence are important to be aware of. Large deformations of the net under realistic wave and current conditions were observed, where contact between the net and other parts of the structure were identified. This may cause damages to the net due to abrasion.

关 键 词：aquaculture structure hydrodynamic loads HYDROELASTICITY 

分 类 号：S955.9[农业科学—水产养殖]