【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。更多还原

【Abstract】 This paper numerically simulates the vortex-induced vibrations of ocean current energy harvester with attached spinning 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 the maximum non-dimensional vibration amplitude Y_max/D) with the energy harvest damping ratio ζ_harness,the non-dimensional spinning velocity α and azimuthal angle θ of the attached cylinders are investigated.Moreover,the variations of the maximum non-dimensional vibration amplitude Y_max/D with the combined parameter α/θ are further investigated.A set of formula is presented by using the curve fitting method.The variations of the coefficients in the formula with influencing parameters are discussed qualitatively.更多还原