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潮流能水轮机叶片翼型水动力性能的数值模拟研究
引用本文:田美灵,刘雪峰,王晋宝,唐志波,吴国荣. 潮流能水轮机叶片翼型水动力性能的数值模拟研究[J]. 水电能源科学, 2014, 32(12): 139-142
作者姓名:田美灵  刘雪峰  王晋宝  唐志波  吴国荣
作者单位:浙江海洋学院 海运与港航建筑工程学院, 浙江 舟山 316022;浙江海洋学院 船舶与海洋工程学院, 浙江 舟山 316022;浙江海洋学院 海运与港航建筑工程学院, 浙江 舟山 316022;浙江海洋学院 海运与港航建筑工程学院, 浙江 舟山 316022;浙江海洋学院 船舶与海洋工程学院, 浙江 舟山 316022
摘    要:鉴于潮流能水轮机叶轮叶片性能的好坏关系到叶轮的捕能效果,而叶片翼型的水动力性能是叶片设计的基础,基于CFD软件ANSYS CFX对部分翼型的水动力性能进行了分析。首先在不同湍流模型下对NACA2412翼型的部分水动力特性进行数值模拟并与试验值做对比分析;然后在SST湍流模型下,对NACA64421翼型在攻角为0°时,探讨了边界层网格对数值模拟结果的影响;并对其在攻角为-2°~20°情形下的水动力性能进行了数值模拟。结果表明,湍流模型的选用、边界层网格划分及近壁尺寸的选取对数值模拟结果的影响均较大,并通过数值模拟得到了NACA64421翼型的升力系数、阻力系数、最佳攻角、失速角等水动力性能参数,可为水轮机叶片设计时翼型的选取提供参考。

关 键 词:潮流能水轮机; 翼型; 水动力性能; 数值模拟

Numerical Simulation of Hydrodynamic Performance of Blade Airfoil of Tidal Current Energy Turbine
TIAN Meiling,LIU Xuefeng,WANG Jinbao,TANG Zhibo and WU Guorong. Numerical Simulation of Hydrodynamic Performance of Blade Airfoil of Tidal Current Energy Turbine[J]. International Journal Hydroelectric Energy, 2014, 32(12): 139-142
Authors:TIAN Meiling  LIU Xuefeng  WANG Jinbao  TANG Zhibo  WU Guorong
Abstract:As the performance of the tidal current energy turbine blade has impact on energy catching efficiency and the hydrodynamic performance of the blade airfoil is the foundation of blade design, the hydrodynamic performances of some airfoils are analyzed with the CFD software ANSYS CFX. The hydrodynamic characteristics of the NACA 2412 airfoil are simulated numerically and compared with the experimental values under different turbulence models. And then the impact of the boundary layer mesh on the numerical results is discussed for the NACA 64421 airfoil under SST turbulence model at 0° attack angle, and its dynamic performances at the attack angles of 2° to 20° are simulated numerically. The conclusions are got that the turbulence models and the boundary layer mesh have a great impact on the accuracy of the numerical simulation results. Finally, the lift coefficient, the resistance coefficient, the best attack angle and the stall attack angle of NACA64421 airfoil are obtained via numerical simulation. Thus, it provides references for the airfoil selection of blade design.
Keywords:tidal current energy turbine   airfoil   hydrodynamic performance   numerical simulation
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