波浪作用下网衣结构承受载荷研究  

Research on Wave Loads on Net Structure in Regular Waves

作　　者：苗玉基 丁军[1] 田超[1] 郭晓宇[3] 陈徐均 MIAO Yuji;DING Jun;TIAN Chao;GUO Xiaoyu;CHEN Xujun(China Ship Scientific Research Center,Wuxi 214082,China;College of Field Engineering,PLA Army Engineering University,Nanjing 210007,China;School of Naval Architecture,Ocean&Civil Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]中国船舶科学研究中心,无锡214082 [2]陆军工程大学野战工程学院,南京210007 [3]上海交通大学船舶与建筑工程学院,上海200240

出　　处：《中国造船》2020年第2期210-219,共10页Shipbuilding of China

基　　金：工信部高性能船舶科研资助项目(2019[357]号文);中国船舶科学研究中心青年创新基金项目(J1872)。

摘　　要：为了研究波浪作用下渔业养殖装备的网衣受到的载荷,并探讨主要的影响因素。采用屏模型对网衣进行了数值计算,分别应用线性波理论和2阶斯托克斯波理论计算流体质点速度和加速度,并考虑自由表面变化对网衣载荷的影响。为了验证数值方法,对不同密实度网衣进行了水槽试验。结果表明,屏模型计算得到的网衣波浪载荷和试验吻合较好,2阶斯托克斯波理论计算得到的波浪水平力峰值比线性波理论计算的精度更高。网衣密实度对网衣受到的波浪载荷具有较大影响,特别是在长周期波情况,影响更为显著。In this paper,numerical simulation and experiments are carried out to study the wave load on the net in regular waves.A screen model together with Airy wave theory and the second order Stokes wave theory is applied to calculate velocity and acceleration of the fluid point,and the influence of the free surface on the net loads.A series of tests of the net with various solidity is carried out.It is shown that the wave load calculated by the screen model is well matched with the experimental ones.The peak of horizontal wave force based on the second order Stokes wave theory is more accurate than that of the linear wave theory.The net solidity has a significant impact on the wave load on the net,especially in long periods of waves.

关 键 词：水动力性能 网衣结构 养殖工程 波浪载荷 数值模拟 水槽试验 

分 类 号：O352[理学—流体力学]