渔业现代化2017，Vol.44Issue(2)：6-13,8.DOI:10.3969/j.issn.1007-9580.2017.02.002
贝类养殖吊笼水动力特性的实验研究
Experimental study on hydrodynamic characteristics of lantern net for shellfish culture
摘要
Abstract
In this paper,hydrodynamic characteristics of lantern net under regular wave and uniform current are respectively discussed by model test,and the influence of different densities of shellfish on the force of lantern net is analyzed.The hydrodynamic coefficients Cd and Cm are calculated by the least square method based on the Morison equation under wave load;Drag coefficient Cd is calculated using the simplified Morison formula in the effect of current; and the effects of Kc number, Reynolds number and breeding density of shellfish on hydrodynamic coefficients Cd and Cm are analyzed.The results indicate that:The motion amplitude and force of the lantern net increase with the increase of the wave height,period and current velocity;The horizontal force of lantern net increases and the amplitude of the motion decreases as the shellfish breeding density increases;Drag coefficient Cd increases slightly with the Kc number and the Reynolds number increases under wave load, while inertia coefficient Cm increases first and then remains stable; The drag coefficient Cd does not change significantly with the increase of Reynolds number under current action; Under the same conditions, the increase of shellfish breeding density leads to the increase of drag coefficient and decrease of inertia coefficient. The study shows that,the hydrodynamic coefficients for the lantern net obtained from this experiment could be used as reference in the calculation of wave and current loads of lantern nets.关键词
吊笼/水动力系数/规则波/均匀流/养殖密度Key words
lantern net/hydrodynamic coefficients/regular wave/uniform current/breeding density分类
农业科技引用本文复制引用
赵云鹏,廖鹏,毕春伟,李明智..贝类养殖吊笼水动力特性的实验研究[J].渔业现代化,2017,44(2):6-13,8.基金项目
国家自然科学基金(51239002,51579037,51221961,51609035) （51239002,51579037,51221961,51609035）
中国博士后基金(2016M590224) （2016M590224）
中央高校基本科研业务费专项(DUT16YQ105) （DUT16YQ105）
