Jian Wang, G. He, W. Mo, Shijun Zhang, Jiangtao Man
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引用次数: 0
摘要
采用Star CCM+软件对一种新型电流发电机的水动力性能进行了研究，并考虑了地中翼(Wing in Ground, WIG)的影响。对具有二维单振翼和双平行振翼的水轮机在均匀流动条件下的俯仰和升沉运动进行了数值模拟，计算了水翼的升力、阻力和力矩系数等数值结果，分析了发电机的水动力性能。首先，通过与已发表数据的对比，进行了网格和时间步长的收敛性研究。其次，研究了基于wigg的电流能量提取的水动力性能，证实了其良好的电流能量提取性能。最后，研究了机翼和壁面边界条件对电流发生器性能的影响。
Hydrodynamic Performance of a Current Energy Generator Based on WIG
The hydrodynamic performance of a novel current energy generator is studied with consideration of the effect of Wing in Ground (WIG) by Star CCM+. The pitch and heave motions of a turbine with a 2D single oscillating wing and two parallelized oscillating wings in uniform flow are simulated, and the numerical results including the lift force, drag force and moment coefficients of the hydrofoil are calculated to analyze the hydrodynamic performance of the generator. First, the convergence studies with respect to the mesh and time step are firstly carried out by compared with the published data. Secondly, the hydrodynamic performance of the WIG-based current energy extraction is investigated, and a good performance of the current energy extraction is confirmed. Finally, the effect of boundary conditions of wing and wall on the performance of the current energy generator is investigated.
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