中文摘要：

借助计算流体力学（CFD）方法研究潮流能水平轴水轮机水动力学性能，选择合适的湍流模型至关重要。为此，本文采用计算流体力学软件Fluent，将Spatart-Allmaras湍流模型、标准κ-ε湍流模型、RNG κ-ε湍流模型、标准κ-ε湍流模型和SST κ-ε湍流模型分别应用到水平轴水轮机数值模拟当中。对数值模拟结果进行分析比较，并与模型试验数据进行对比，得出应用SST κ-ε湍流模型可以更好的模拟潮流能水平轴水轮机的水动力学性能。

英文摘要：

A proper turbulence model is necessary to simulate the hydrodynamic performance of horizontal axis tidal current turbines with the aid of computational fluid dynamics （CFD） method. Spalart-Allmaras model,standard κ-ε model,RNG κ-ε model, standard κ-ε model and SST κ-ε model were used to simulate the hydrodynamic performance of a horizontal axis tidal current turbine by using software Fluent. The results of numerical simulation were analyzed and compared with the experimental results. It is showed that the calculations rising SST κ-ε model are better than other models in simulating the hydrodynamic performance of horizontal axis tidal current turbines.