渔业现代化2025，Vol.52Issue(6)：29-37,9.DOI:10.26958/j.cnki.1007-9580.2025.06.004
水流作用下分流减流型网箱水动力特性比较研究
Comparative study on hydrodynamic characteristics of flow-diversion and flow-reduction aquaculture cages under current action
摘要
Abstract
Hydrodynamic load constitutes a critical parameter in the design of offshore aquaculture cages.However,the current severe deficiency in research on the hydrodynamic characteristics of flow-diversion and drag-reduction cage systems significantly constrains their safety design and structural optimization.This study systematically analyzes the influence of common offshore aquaculture cage geometry,net solidity,and inflow velocity on hydrodynamic loads based on physical model experiments.The experiment measured the hydrodynamic loads on square,hexagonal,octagonal,dodecagonal,and circular cages under steady flow conditions(flow velocity range:0.3 m/s to 0.7 m/s at 0.1 m/s intervals).The results demonstrate that hexagonal cages exhibit significant flow-diversion and drag-reduction performance under both constant and varying conditions of net solidity and flow velocity.Under identical net configuration conditions,the mean hydrodynamic loads and their sensitivity to flow velocity across various cage types exhibited the following increasing order:hexagonal<octagonal<circular<square<dodecagonal.Among them,the hexagonal cage demonstrated approximately 78%of both the hydrodynamic load and flow-velocity sensitivity compared to the square cage.This study provides critical reference data for the structural optimization of aquaculture net cages.关键词
网箱形状/减流效应/来流速度/网衣密实度/深远海网箱/水动力特性Key words
cage geometry/flow-reduction effect/flow velocity/net solidity/aquaculture cages/hydrodynamic characteristics分类
农业科技引用本文复制引用
冯德军,顾天宇,崔璨,宫羽,李舒彦,桂福坤..水流作用下分流减流型网箱水动力特性比较研究[J].渔业现代化,2025,52(6):29-37,9.基金项目
国家重点研发计划(2024YFD2400200) （2024YFD2400200）
浙江省"尖兵""领雁"科技计划(2023C02029) （2023C02029）
国家自然科学基金(32002441) （32002441）
舟山市"揭榜挂帅"科技攻关计划(2022C01003) （2022C01003）
