横摇运动下养殖工船多液舱流场特性数值分析  

Numerical Analysis of Flow Field Characteristics in Muti-tanks of Aquaculture Vessel under Rolling Motion

作　　者：方舟[1] 徐红昌 戴锦阳[1] FANG Zhou;XU Hong-chang;DAI Jin-yang(Jiaxing Nanyang Vocational and Technical College, Jiaxing Zhejiang 341031, China;Jiaxing Port and Shipping Management Service Center, Jiaxing Zhejiang 341031, China)

机构地区：[1]嘉兴南洋职业技术学院,浙江嘉兴314031 [2]嘉兴市港航管理服务中心,浙江嘉兴314031

出　　处：《船海工程》2021年第6期41-45,50,共6页Ship & Ocean Engineering

摘　　要：为了解横摇运动对大型养殖工船养殖舱内养殖环境的影响,采用欧拉多相流方法建立养殖舱横摇运动数值计算模型,对某养殖工船横摇运动下多液舱流场特性进行数值模拟,结果表明,沿船中布置的养殖舱内流体速度变化程度远小于沿船体左右两侧布置的养殖舱;养殖舱适养流速区域占比时历曲线具有一定的周期性,其周期大致为横摇运动周期的一半;横摇幅值相同时,养殖舱适养区域占比随着横摇周期的增大而增大;养殖舱液位高度对沿船体对称布置的养殖舱内流场影响较小,养殖舱沿船体左右舷布置时,养殖舱液位高度在肩部区域较为适宜,此时舱内流体晃荡程度较小。Rolling motion has an important impact on the fish-suitability in water tanks of large aquaculture ships.The numerical simulation model of the tanks rolling motion was established based on the Euler multiphase flow method to simulate of the flow field characteristics of the multi-tanks under the rolling motion.The numerical results showed that the degree of velocity change of the flow field in the tanks arranged along the mid-ship is much less than that arranged along the port and starboard sides of the ship.The time history curve of the proportion of the suitable flow velocity region of the tank has a certain periodicity,and its period is about half of the exciting period of rolling motion.The proportion of suitable area increases with the increase of rolling period in the same rolling amplitude.The height of the tank’s liquid level has little effect on the flow field in the tank which is arranged along the hull symmetrically When the tank is arranged along the starboard and starboard of the hull,the height of the liquid level of the tank is more suitable in the shoulder corner area with a smaller sloshing degree in the tank.

关 键 词：养殖舱 横摇运动 适渔性 液舱晃荡 CFD 

分 类 号：U661.3[交通运输工程—船舶及航道工程]