渔业现代化2025，Vol.52Issue(6)：9-19,11.DOI:10.26958/j.cnki.1007-9580.2025.06.002
船载养舱中可溶颗粒物的建模与输运特性研究
Research on the modeling and transport characteristics of soluble particles in a vessel-based aquaculture tank
摘要
Abstract
Aquaculture vessels represent an important direction in the development of modern marine fisheries,and the transport characteristics of particles within rearing tanks are of great significance for assessing tank water environments.In this study,the transport behavior of soluble particles in a vortex flow field was investigated based on the Euler-Lagrangian computational framework.Considering the effects of inflow and outflow,a hybrid modeling approach was adopted,employing LES(Smagorinsky model)in the horizontal direction and a RANS model in the vertical direction,thereby constructing a numerical rearing tank.The Langevin model was applied to simulate the motion and settling of particles in vortex flows.The study examined particle transport characteristics under different flow conditions,analyzing the variation of maximum discharge rate and residence time with inflow angle,inflow discharge,particle density,and solubility.Results show that when the inflow angle increases from 0°to 60°,the maximum discharge rate of particles decreases from 74%to 37%.As the inflow discharge rises from 0.25 m3/s to 1.25 m3/s,the maximum discharge rate increases from 64%to 98%.The transport characteristics of commonly soluble particles were found to be largely similar.However,with further increases in particle solubility,the maximum discharge rate decreased by 12%.These findings indicate that,under a given inflow discharge,adjusting inflow angle and particle density can effectively enhance the maximum discharge rate of particles,whereas particle solubility exerts a suppressing effect on discharge performance.关键词
养殖工船/养舱/欧拉-拉格朗日/朗之万模型/颗粒物输运/颗粒物溶解Key words
aquaculture vessel/rearing tank/euler-Lagrange/langevin model/particle transport/particle dissolution分类
农业科技引用本文复制引用
郭适源,郭晓宇..船载养舱中可溶颗粒物的建模与输运特性研究[J].渔业现代化,2025,52(6):9-19,11.基金项目
国家重点研发计划(2022YFD2401101) （2022YFD2401101）
国家自然科学基金面上项目(12472244) （12472244）
