潮流能转换装置串列双圆柱振子流致振动振幅响应研究
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摘要
合理的排布方式可显著提高流致振动潮流能装置阵列的总体转换效率。针对串列双圆柱振子排布方式流致振动潮流能转换装置,利用ADINA软件对不同参变量下等直径串列双圆柱流致振动振幅响应进行数值模拟,得到不同间距、不同流速、不同雷诺数条件下,上下游圆柱振幅响应规律以及尾流模式和位移时程曲线。制作双振子潮流能装置模型,进行水槽试验,试验结果与数值结果的变化趋势基本吻合。结果表明,在振子间距2D的排布方式下,上下游振子振幅值最大且均大于单振子振幅。
The overall conversion efficiency of flow-induced vibration tidal energy device arrays with reasonable arrangement can be significantly improved.Aiming at flow-induced vibration tidal current energy conversion device with arrangement of tandem double-cylinder oscillators,ADINA software is used to carry out numerical simulation of amplitude response of flow-induced vibration with equal diameter tandem double-cylinder under different parameters,the amplitude response rules of up and down-stream cylinders,wake pattern and displacement time travel curves under different spacing,different flow rates and different Reynolds numbers are obtained.The two-oscillator tidal current energy converter model is manufactured and the experiment in flume is performed,the experiment results are in good agreement with the numerical results.The results show that the amplitudes of upstream and downstream oscillators reach maximum in the arrangement of the oscillators spacing 2 D,and both are greater than the amplitude of the single oscillator.
The overall conversion efficiency of flow-induced vibration tidal energy device arrays with reasonable arrangement can be significantly improved.Aiming at flow-induced vibration tidal current energy conversion device with arrangement of tandem double-cylinder oscillators,ADINA software is used to carry out numerical simulation of amplitude response of flow-induced vibration with equal diameter tandem double-cylinder under different parameters,the amplitude response rules of up and down-stream cylinders,wake pattern and displacement time travel curves under different spacing,different flow rates and different Reynolds numbers are obtained.The two-oscillator tidal current energy converter model is manufactured and the experiment in flume is performed,the experiment results are in good agreement with the numerical results.The results show that the amplitudes of upstream and downstream oscillators reach maximum in the arrangement of the oscillators spacing 2 D,and both are greater than the amplitude of the single oscillator.
引文
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[9]Zdravkovich M M.Review of flow interference between two circular cylinders in various arrangements[J].Journal of Fluids Engineering,1977,99(4):618—633.
[2]毕继红,任洪鹏,丁代伟,等.串列双圆柱静止绕流的二维数值仿真分析[J].工程力学,2012,(Sup1):8—11.[2]Bi Jihong,Ren Hongpeng,Ding Daiwei,et al.Twodimensional numerical simulation of static flow interference between two circular cylinders in tandem[J].Engineering Mechanics,2012,(Sup1):8—11.
[3]陈文曲,任安禄,李广望.串列双圆柱绕流下游圆柱两自由度涡致振动研究[J].力学学报,2004,36(6):732—738.[3]Chen Wenqu,Ren Anlu,Li Guangwang.The numerical study of two-degree-of-freedom vortex-induced vibration of the downstream cylinder in tandem arrangement[J].Acta Mechanica Sinica,2004,36(6):732—738.
[4]及春宁,陈威霖,黄继露,等.串列双圆柱流致动的数值模拟及其耦合机制[J].力学学报,2014,46(6):862—870.[4]Ji Chenning,Chen Weilin,Huang Jilu,et al.Numerical investigation on flow-induced vibration of two cylinders in tandem arrangements and its coupling mechanisms[J].Chinese Journal of Theoretical and Applied Mechanics,2014,46(6):862—870.
[5]丁林,张力,姜德义.串列双圆柱流致振动及能量转换特性[J].工程热物理学报,2015,36(10):2146—2149.[5]Ding Lin,Zhang Li,Jiang Deyi.Flow-induced motion and energy conversion of two circular cylinders in tandem[J].Journal of Engineering Thermophysics,2015,36(10):2146—2149.
[6]Mysa R C,Kaboudian A,Jaiman R K.On the origin of wake-induced vibration in two tandem circular cylinders at low Reynolds number[J].Journal of Fluids&Structures,2016,61:76—98.
[7]崔肖娜.并列双圆柱绕流的水动力特性研究[D].青岛:中国海洋大学,2014.[7]Cui Xiaona.Hydrodynamic characteristics of viscous flow past two side-by-side cylinders[D].Qingdao:Ocean University of China,2014.
[8]Tu Jiahuang,Zhou Dai,Bao Yan,et al.Flow-induced vibrations of two circular cylinders in tandem with shear flow at low Reynolds number[J].Journal of Fluids&Structures,2015,59:224—251.
[9]Zdravkovich M M.Review of flow interference between two circular cylinders in various arrangements[J].Journal of Fluids Engineering,1977,99(4):618—633.