Rotor-tower interactions of DTU 10MW reference wind turbine with a non-linear harmonic method
Rotor-tower interactions of DTU 10MW reference wind turbine with a non-linear harmonic method
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采用非线性谐波法计算 DTU 10MW 参考风力发电机转子-塔架相互作用
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
G. Coussement
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作者：
S. G. Horcas;F. Debrabandere;B. Tartinville;C. Hirsch;G. Coussement
本文对DTU 10MW参考风力机的非定常空气动力学进行了计算研究。考虑了整个风力涡轮机组件，包括完整的转子和塔。采用NUMECA国际公司开发的FINE/Turbo流动求解器进行模拟。特别地，为了在减少计算成本的前提下精确地模拟流动非定常，采用了非线性调和（NLH）方法。在低叶跨范围和沿塔高方向确定了重要的旋涡脱落结构。转子和塔流之间的强相互作用也被观察到。最后，将NLH方法的性能与标准非定常reynolds - average Navier Stokes模拟进行了比较。两种技术都捕捉到了同样复杂的非定常流动现象。然而，对于这种特殊应用，NLH方法比非定常reynolds - average Navier Stokes方法快10倍。版权所有©2016 John Wiley & Sons， Ltd。
In this paper, a computational study of the DTU 10MW reference wind turbine unsteady aerodynamics is presented. The whole wind turbine assembly was considered, including the complete rotor and the tower. The FINE/Turbo flow solver developed by NUMECA International was employed for the simulations. In particular, the Non-Linear Harmonic (NLH) method was applied in order to accurately model flow unsteadiness at reduced computational cost. Important vortex shedding structures were identified at low blade span range and all along the tower height. A strong interaction between rotor and tower flows was also observed. Lastly, the performance of the NLH approach was compared against a standard Unsteady Reynolds-Averaged Navier Stokes simulation. The same complex unsteady flow phenomena were captured by both technologies. Nevertheless, the NLH approach was found to be 10 times faster than the Unsteady Reynolds-Averaged Navier Stokes method for this particular application. Copyright © 2016 John Wiley & Sons, Ltd.