附加旋转圆柱的涡激振动发电装置水动力特性研究  

Study on the hydrodynamic properties of vortex-induced vibrationgenerator with attached spinning cylinders

作　　者：丁广佳[1,3,4] 及春宁 徐晓黎[2] 许栋 吕迎雪[1,3,4] DING Guang-jia;JI Chun-ning;XU Xiao-li;XU Dong;LYU Ying-xue(Tianjin Port Engineering Institute Co.,Ltd.of CCCC First Harbor Engineering Co.,Ltd.,Tianjin,300222,China;State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin 300072,China;CCCC First Harbour Engineering Company Ltd.,Tianjin,300456,China;Key Laboratory of Coastal Engineering Hydrodynamics,CCCC,Tianjin,300222,China)

机构地区：[1]中交天津港湾工程研究院有限公司,天津300222 [2]天津大学水利工程仿真与安全国家重点实验室,天津300072 [3]中交第一航务工程局有限公司,天津300456 [4]中国交建海岸工程水动力重点实验室,天津300222

出　　处：《中国港湾建设》2022年第11期7-13,共7页China Harbour Engineering

基　　金：国家自然科学基金(51779172);中国交通建设股份有限公司科技研发项目(2019-ZJKJ-PTJS02)。

摘　　要：基于嵌入式迭代浸入边界法,数值模拟了附加旋转圆柱的海流能利用装置的涡激振动,研究了系统水动力参数(升力系数均方根值C_(L,rms)、阻力系数均值C_(D,mean)和均方根值C_(D,rms)、最大无量纲振幅Y_(max)/D)随俘能阻尼比ζ_(harness)、附加圆柱的无量纲转速α和方位角θ的变化规律。进一步研究了最大无量纲振幅Y_(max)/D随组合参数α/θ的的变化规律,给出了拟合关系式,定性分析了拟合公式系数随影响参数的变化规律。This paper numerically simulates the vortex-induced vibrations of ocean current energy harvester with attachedspinning cylinders by using the embedded iterative immersed boundary method.The variations of the hydrodynamic properties(the root-mean-square lift coefficient C_(L,rms),the mean and root-mean-square drag coefficient C_(D,mean) and C_(D,rms),and themaximum non-dimensional vibration amplitude Y_(max)/D)with the energy harvest damping ratio ζ _(harness),the non-dimensionalspinning velocity α and azimuthal angle θ of the attached cylinders are investigated.Moreover,the variations of the maximumnon-dimensional vibration amplitude Y _(max)/D with the combined parameter α/θ are further investigated.Aset of formula ispresented by using the curve fitting method.The variations of the coefficients in the formula with influencing parameters arediscussed qualitatively.

关 键 词：涡激振动 发电装置 水动力特性 主动流动控制 附加旋转圆柱 

分 类 号：P751[交通运输工程—港口、海岸及近海工程] TB53[天文地球—海洋科学]