网衣对混合结构养殖船内外流场影响的数值研究  

Numerical study on the flow field influence of netting on the inside and around of mariculture ship with hybrid structure

作　　者：周利兰[1,2] 张能 王绍敏[3,4] 谢洁 ZHOU Lilan;ZHANG Neng;WANG Shaomin;XIE Jie(Key Laboratory of High Performance Ship Technology of Ministry of Education,Wuhan University of Technology,Wuhan 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan 430063,China;Key Laboratory of Open-Sea Fishery Development of Ministry of Agriculture and Rural Affairs,South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Guangzhou 510300,China;Sanya Tropical Fisheries Research Institute,Sanya 572024,Hainan China)

机构地区：[1]武汉理工大学高性能船舶技术教育部重点实验室,湖北武汉430063 [2]武汉理工大学船海与能源动力工程学院,湖北武汉430063 [3]中国水产科学研究院南海水产研究所农业农村部外海渔业开发重点实验室,广东广州510300 [4]三亚热带水产研究院,海南三亚572024

出　　处：《华中科技大学学报（自然科学版）》2024年第4期49-55,共7页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金青年基金资助项目(51409201);海南省科技专项资助项目(ZDYF2022GXJS347);海南省自然科学基金资助项目(323MS121,322QN438);中国水产科学研究院基本科研业务费资助项目(2023TD58)。

摘　　要：针对混合结构式养殖船周围流场分布问题,采用基于RANS(Reynolds-averaged Navier-Stokes)方程的CFD(计算流体力学)方法对无网、带侧网、带侧网及底网三种养殖船模型的绕流场进行了数值计算,计算中采用多孔介质模型模拟网衣,基于计算结果对不同来流速度下养殖船总阻力的变化及网衣对养殖船内外流场的影响等进行了探讨.结果表明:同一流速下带侧网的养殖船总阻力最大,而带侧网及底网养殖船总阻力最小;侧网的存在会使养殖船中间舱处产生旋涡,而侧网和底网同时存在会使养殖船内部发生局部阻塞现象.Aiming at the distribution of the flow field around the mariculture ship with hybrid structure,the CFD(computational fluid dynamics)method based on the RANS(Reynolds-averaged Navier-Stokes)equation was used to calculate the flow field around the mariculture ships which were without net,with side nets only and with both side and bottom nets.The porous media model was adopted to model the nets in the calculation.Based on the calculated results,the variation of total resistance of the ships with different velocities and the effect of the nets on the flow fields of the ships were discussed.Results show that the total resistance of the ship with side nets is the highest and the total resistance of the ship with both side and bottom nets is the lowest under the same velocity.Vortices appear in the middle compartment of the ship with the presence of side nets,while local blockage inside the ship appears with the presence of both side and bottom nets.

关 键 词：养殖船 混合结构 多孔介质 流场 数值模拟 

分 类 号：U661.32[交通运输工程—船舶及航道工程]