网衣选型及布置方式对网箱适渔性影响的数值分析  

Numerical Analysis of the Impact of Net Selection and Arrangement on the Fishing Suitability of Net Cages

作　　者：王胜通 聂容刚 陈凯 王绪旺 王宏 周松 WANG Sheng-tong;NIE Rong-gang;CHEN Kai;WANG Xu-wang;WANG Hong;ZHOU Song(Southern Marine Science and Engineering Guangdong Laboratory(Zhanjiang),Zhanjiang Guangdong 524013,China)

机构地区：[1]南方海洋科学与工程广东省实验室(湛江),广东湛江524013

出　　处：《船海工程》2025年第1期111-115,共5页Ship & Ocean Engineering

基　　金：科技部2022年国家重点研发计划(2022YFD2401201);广东省海洋经济发展(海洋六大产业)专项资金(GDNRC[2023]33);南方海洋科学与工程广东省实验室(湛江)项目(011Z23002);市级专项资金:深远海养殖网箱网衣系统的研发与产业化(2021E05034)。

摘　　要：为了解不同网箱参数下的流场适渔性情况,基于Realizable k-ε湍流模型,结合多孔介质理论,建立某深远海项目网衣的三维水动力模型。验证计算方法的可靠性,进一步分析在养殖海域中,流速、网衣线径、目脚长度、网衣间距等参数对流场适渔性的影响,并评估设计网衣的适渔性。结果表明,一定范围内较大的来流速度更有利于网后流场适渔性;网衣线径与目脚尺寸对适渔性的影响效果截然相反,线径越小,目脚长度越大,流场的适渔性一般越好;网衣间距变化对于网片间流场适渔性影响不大;设计网衣选型符合在养殖海域中的适渔性要求。Based on Realizable k-εturbulence model and the theory of porous media,a three-dimensional hydrodynamic model was established to solve the fish-adaptability problem of the cage-mesh system in far-reaching Marine culture.After verifying the reliability of the calculation method,the influence of flow velocity,wire diameter,mesh length,mesh spacing on the fishability of the flow field in the aquaculture sea area was further analyzed,and the fishability of the project net was evaluated.The simulation results showed that the adaptability of the flow field behind the net is obviously improved by increasing the inflow velocity within a certain range.The effect of wire diameter and mesh length on fishing suitability is completely opposite.The smaller the wire diameter and the larger the mesh length,the better the fishing suitability of flow field.The variation of net spacing has little effect on the fishability of intermesh flow field.The selection of design net meets the requirements of fishability in the aquaculture sea area.

关 键 词：网衣 多孔介质 适渔性 

分 类 号：U661.3[交通运输工程—船舶及航道工程]