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首页> 外文会议>34th International conference on ocean, offshore and arctic engineering 2015 >NUMERICAL PREDICTION OF THE HYDRODYNAMIC PERFORMANCE OF A HORIZONTAL TIDAL TURBINES
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NUMERICAL PREDICTION OF THE HYDRODYNAMIC PERFORMANCE OF A HORIZONTAL TIDAL TURBINES

机译：水平潮汐涡轮机水动力性能的数值预测

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摘要

Tidal current energy is one of the most promising renewable energy resources. The prediction of the hydrodynamic loads and power efficiency are the critical issues for verifying the new designs. Besides, Optimization of turbine arrangement is important for a tidal turbine farm. The hydrodynamic behavior of a turbine operating in the wake of an upstream turbine needs to clarify. In this paper we present a CFD approach in which the CFD library of OpenFOAM is utilized for prediction of the performance of a three bladed horizontal axis tidal turbine (HATT) in a test tunnel environment. The Reynolds Average Navier Stokes (RANS) equation with Shear Stress Transport (SST) turbulence model is applied. The steady-state solver is tested for present numerical simulation. The Multi Reference Framework (MRF) method is adopted for dealing with grid relative rotation. Turbulence models effects and the mesh generation are well described. The resultant power and thrust coefficients of these simulations are compared with experimental results at various tip speed ratios (TSRs).
机译：潮流能源是最有前途的可再生能源之一。流体动力负载和功率效率的预测是验证新设计的关键问题。此外，优化涡轮机布置对于潮汐涡轮机场也很重要。需要阐明在上游涡轮机之后运行的涡轮机的流体力学行为。在本文中，我们介绍了一种CFD方法，其中OpenFOAM的CFD库用于在测试隧道环境中预测三叶片水平轴潮汐涡轮机（HATT）的性能。应用具有剪切应力传输（SST）湍流模型的雷诺平均纳维斯托克斯（RANS）方程。对稳态求解器进行了当前数值模拟测试。采用多参考框架（MRF）方法处理网格相对旋转。湍流模型效果和网格生成已得到很好的描述。将这些模拟所得的功率和推力系数与各种尖端速度比（TSR）下的实验结果进行比较。

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