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主要基于粘性CFD理论对数值模拟中不同参数的影响做出详细研究与论证,计算水平轴潮流能水轮机在不同网格数量、湍流模型与参考系的结果。通过数值模拟与模型实验结果的对比,验证计算结果的准确性。另外分析计算误差产生的原因,总结可得到较精确结果的参数设置、网格划分原则以及计算模型。
Based on the theory of viscous CFD, the influence of different parameters in numerical simulation is studied and demonstrated in detail. The results of horizontal grid tidal current turbine with different numbers of grids, turbulence model and reference frame are calculated. Through the comparison between numerical simulation and experimental results, the accuracy of the calculation results is verified. In addition, the causes of calculation errors are analyzed, and the parameter settings, the principle of meshing and the calculation models for obtaining more accurate results can be summarized.