深水吊耳筏式养殖系统波浪水动力特性研究  

Study on hydrodynamic behavior of deep water long-line rope raft aquaculture facility in waves

作　　者：桂福坤 刘威 孟昂 冯德军 潘昀 GUI Fu-kun;LIU Wei;MENG Ang;FENG De-jun;PAN Yun(National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhejiang, Zhoushan, 316022, China)

机构地区：[1]浙江海洋大学国家海洋设施养殖工程技术研究中心,浙江舟山316022

出　　处：《水动力学研究与进展（A辑）》2018年第2期230-237,共8页Chinese Journal of Hydrodynamics

基　　金：国家海洋公益性行业专项(201505025-2);国家自然科学基金(51239002);浙江省自然科学重点基金(Z16E090006);舟山市科技计划项目(2017C41001)~~

摘　　要：该文利用数值模拟和模型试验的方法,研究了深水延绳式筏式吊耳养殖系统在波浪作用下的受力及运动特性,并探讨了波高和波浪周期对筏式系统的水动力特性影响。结果表明,波高主要影响筏式吊耳养殖系统的最大受力幅值,而周期主要影响系统的受力分布特性。筏式吊耳养殖系统的各部分最大受力均随波高的增大而增大。梗绳各节点的竖向运动幅值均随波高和周期的增大而增大;梗绳两端节点受锚绳约束,运动轨迹呈现扁平化特征;中间节点运动轨迹随周期增大而呈扁平化趋势,周期越大,水平运动幅值越小。上浮球系绳的最大受力主要出现在背波面,但可能会随着波浪周期和系统结构的变化而改变。深水延绳式筏式吊耳养殖系统属于典型的柔性多自由度海上结构物,该文研究结果可为深水延绳式吊耳筏式养殖系统结构设计和安全性能评估提供参考。In this paper, methods of numerical simulation and model experiment are used for studying the force and movement of deepwater long-line rope aquaculture facility in waves. The effect of wave height and wave period on the deep water long-linerope raft aquaculture system is discussed. It is found that wave height has main effect on the maximum force of facility. Wave period has main effect on the stress distribution characteristics of facility. It shows positive correlation between wave height and the maximum force of each part of facility. The maximum force increases as wave height increases. Vertical movement amplitude of each node on longline increases as wave height and period increases. Both ends of the longline nodes are bounded by the anchor rope and trajectory becomes slim. Middle node trajectories become slim as wave period increases and the horizontal motion amplitude decreases as wave period increases. The maximum force of floating ball line mainly appears in the back wave side, but may be change as the wave period and facility structure change. Deep water long-line rope aquaculture facility belongs to the typical flexible multi degree of freedom offshore structure. This research results can provide the reference for designing deep water long-line rope aquaculture facility and safety evaluation.

关 键 词：波浪 筏式养殖 水动力特性 延绳式 

分 类 号：TV131[水利工程—水力学及河流动力学]