Large-Eddy Simulation of Flow around a Horizontal-Axis Wind Turbine

Abstract:

Three-dimensional flow around a horizontal-axis wind turbine has been investigated with LES method coupled with sliding mesh and experimental measurement. The boundary conditions are set as the same as those of the experiment. The images of the pressure distribution, flow rate distribution, turbulent intensity, velocity vector and vortices of the wind turbine are presented to show the three-dimensional flow characteristics around the wind turbine. The relationship between flow and sound is further studied by analyzing the flow parameters pulsation spectrum to get the sound pressure level. LES results are compared with the wind-tunnel measurements collected with PIV, and good agreement is observed. The results serve as a reference for optimum design of the wind turbine with high functional performance and low level noise generation.

• Periodical: Applied Mechanics and Materials (Volumes 291-294)
• Pages: 450-455
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.291-294.450
• Online since: February 2013
• Authors: Kun Luo, San Xia Zhang, Zhi Ying Gao, Jian Wen Wang, Sheng Hua Zhu, Li Ru Zhang, Jian Ren Fan
• Keywords: Aerodynamic Noise, Flow Field, Horizontal Axis Wind Turbine, Large Eddy Simulation (LES), Wind-Turbine Wakes

References

[1] H. -J. Kim, S. Lee, N. Fujisawa. Computation of unsteady flow and aerodynamics noise of NACA0018 airfoil using large eddy simulation. Int. J. Heat and Fluid Flow, 2006, 27, 229-242.

DOI: 10.1016/j.ijheatfluidflow.2005.08.007

[2] Maeda T，Kinpara Y，Kakinaga T．Wind tunnel and field experiments on wake behind horizontal axis wind turbine, J. Transactions of the Japan Society of Mechanical Engineers, 2005, 71 (701): 162-170.

DOI: 10.1299/kikaib.71.162

[3] Hu Danmei，Tian Jie，Du Zhaohui. Measurement and analysis of wake behind horizontally orientated air turbines, J. Journal of Power Engineering，2006，26 (5): 751-760.

[4] AGARD. A selection of test cases for the validation of large-eddy simulations of turbulent flows. AGARD Advisory Report 345.

[5] Fernando Porte´-Agel, Yu-Ting Wu, Hao Lu, Robert J. Conzemius. Large-eddy simulation of atmospheric boundary layer flow through wind turbines and wind farms. J. Wind Eng. Ind. Aerodyn. 99 (2011) 154–168.

DOI: 10.1016/j.jweia.2011.01.011

[6] L. Davidson, D. Cokljat, J. Fr¨ohlich, M.A. Leschziner, C. Mellen and W. Rodi (eds. ), LESFOIL: Large Eddy Simulation of Flow Around a High Lift Airfoil, Springer Verlag, 2003, Notes on Numerical Fluid Mechanics, Vol. 83.

DOI: 10.1007/978-3-540-36457-3