中国电机工程学报Issue(35)：95-101,7.
不同湍流模型对MEXICO风力机气动性能预测精度的研究
Research on the Effect of Different Turbulence Models on the Aerodynamic Performance Prediction Accuracy of MEXICO Wind Turbines
摘要
Abstract
In order to validate the aerodynamic prediction accuracy of different turbulence models for rotating wind turbines, the commercial CFD software ANSYS CFX 14.0 was used to predict the aerodynamic performance of MEXICO wind turbine at three different inflow velocities under non-yawed condition. Two turbulence models, which included one equation Spalart-Allmaras (S-A) model and two-equation SST model, were employed to analyze the effect of calculation grid number on the calculated power of MEXICO rotor. Then, by comparing the calculated data of pressure coefficients, loads applied on blade, lift and drag coefficients of airfoils with the experimental data, this paper finds that the results calculated by two turbulence models show good agreement with the relevant experimental results under attached flow condition, SST model gives more accurate prediction about the pressure coefficients on suction side of blades under separated flow condition. By using both S-A and SST turbulence models to predict the performance of MEXICO wind turbine, certain accuracy can be obtained when flow separates, while SST model has higher prediction precision than S-A model under large flow separation condition.关键词
湍流模型/数值模拟/风力机/网格/流动分离Key words
turbulence models/numerical simulation/wind turbines/grid/flow separation分类
能源科技引用本文复制引用
徐浩然,杨华,刘超,洪泽东..不同湍流模型对MEXICO风力机气动性能预测精度的研究[J].中国电机工程学报,2013,(35):95-101,7.基金项目
科技部中欧政府间国际合作项目(2010DFA64660)；国家自然科学基金项目(50706041)；江苏省研究生科研创新计划项目(CXLX13_907)；江苏省水利动力工程重点实验室开放课题(K12019)。@@@@An International Cooperative Programme Between Chinese and European government Supported by the Ministry of Science and Technology of China (2010DFA64660) （2010DFA64660）
Project Supported by National Natural Science Foundation of China (50706041) （50706041）
Project Supported by Academic Degrees Committee of Jiangsu Province (CXLX13_907) （CXLX13_907）
Project Supported by the opening foundation of Hydrodynamic Engineering Key Laboratory of Jiangsu Province, Yangzhou University (K12019) （K12019）
