Numerical Simulation of Dynamic Response of A Net Cage for Flatfish in Waves  

作　　者：桂福坤 赵云鹏 许条建 关长涛 

机构地区：[1]National Engineering Research Center for Marine Aquaculture,Zhejiang Ocean University [2]State Key Laboratory of Coastal and Offshore Engineering,Dalian University of Technology [3]Yellow Sea Fisheries Research Institute

出　　处：《China Ocean Engineering》2014年第1期43-56,共14页中国海洋工程（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51109187,51239002 and 51221961;the Project form Zhoushan Science and Technology Bureau(Grant No.2013C41002)

摘　　要：A numerical model of flatfish cage is built based on the lumped mass method and the principle of rigid body kinematics. To validate the numerical model, a series of physical model tests are conducted in the wave flume. The numerical results correspond well with the data sets from physical model test. The effect of weight of bottom frame, height of fish net and net shape on motion responses of fish cage and tension force on mooring lines is then analyzed. The results indicate that the vertical displacements of float collar and bottom frame decrease with the increase in the weight of bottom frame; the maximum tension force on mooring lines increases with the increasing weight of bottom frame. The inclination angles of float collar and bottom frame decrease with the increasing net height; the maximum tension force increases obviously with the increase of net height.A numerical model of flatfish cage is built based on the lumped mass method and the principle of rigid body kinematics. To validate the numerical model, a series of physical model tests are conducted in the wave flume. The numerical results correspond well with the data sets from physical model test. The effect of weight of bottom frame, height of fish net and net shape on motion responses of fish cage and tension force on mooring lines is then analyzed. The results indicate that the vertical displacements of float collar and bottom frame decrease with the increase in the weight of bottom frame; the maximum tension force on mooring lines increases with the increasing weight of bottom frame. The inclination angles of float collar and bottom frame decrease with the increasing net height; the maximum tension force increases obviously with the increase of net height.

关 键 词：flatfish cage motion response numerical simulation physical model test 

分 类 号：S955.9[农业科学—水产养殖]