| 考虑转捩影响的风力机翼型气动特性计算研究 |
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| 引用本文： | 侯银珠,宋文萍,张坤.考虑转捩影响的风力机翼型气动特性计算研究[J].空气动力学学报,2010,28(2). |
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| 作者姓名： | 侯银珠 宋文萍 张坤 |
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| 作者单位： | 西北工业大学翼型、叶栅空气动力学国家级科技重点实验室,陕西,西安,710072 |
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| 基金项目： | 国家863高技术研究发展计划(2007AA05Z448)资助 |
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| 摘 要： | 基于二维雷诺平均Navier-Stokes(RANS)方程,耦合eN数据库方法进行流动转捩判断,采用SA湍流模型计算了风力机专用翼型DU91-W2-250的气动特性,得到了雷诺数Re=1.0×106时,攻角在-11°~12°范围内该翼型的升力和阻力特性曲线及压力分布。通过对全湍流计算结果、耦合转捩判断的计算结果及实验数据的对比,表明考虑转捩因素后的计算结果与实验结果吻合更好,说明要准确模拟风力机翼型的绕流,必须考虑转捩影响。
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| 关 键 词： | 风力机 翼型 RANS方程 eN数据库方法 转捩判断 |
Calculation of aerodynamic performance of wind turbine airfoil incorporating transition prediction |
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| HOU Yin-zhu,SONG Wen-ping,ZHANG Kun.Calculation of aerodynamic performance of wind turbine airfoil incorporating transition prediction[J].Acta Aerodynamica Sinica,2010,28(2). |
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| Authors: | HOU Yin-zhu SONG Wen-ping ZHANG Kun |
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| Institution: | National Key Laboratory of Aerodynamic Design and Research/a>;Northwest Polytechnical University/a>;Xi'an 710072/a>;China |
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| Abstract: | Based on two dimensional Reynold Averaged Navier-Stokes(RANS) equations coupled with the e~*.The coefficients of lift and drag as well as the pressure distribution were computed with the airfoil's angle of attack changing from -11° to 12°.The comparison between fully turbulent calculation, computed results incorporating tran-sition prediction and experimental data showed that transitional predicted results were closer to the experi-mental values.It's necessary to take transition into account in order to simulate the flow around wind turbine airfoil more accurately. |
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| Keywords: | wind turbine airfoil RANS equations eN database method transition prediction |
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