Abstract
Numerical simulations of wind turbine blade-tower interaction by using the open source OpenFOAM tools coupled with arbitrary mesh interface (AMI) method were presented. The governing equations were the unsteady Reynolds-averaged Navier-Stokes (RANS) which were solved by the pimpleDyMFoam solver, and the AMI method was employed to handle mesh movements. The National Renewable Energy Laboratory (NREL) phase VI wind turbine in upwind configuration was selected for numerical tests with different incoming wind speeds (5, 10, 15, and 25 m/s) at a fixed blade pitch and constant rotational speed. Detailed numerical results of vortex structure, time histories of thrust, and pressure distribution on the blade and tower were presented. The findings show that the wind turbine tower has little effect on the whole aerodynamic performance of an upwind wind turbine, while the rotating rotor will induce an obvious cyclic drop in the front pressure of the tower. Also, strong interaction of blade tip vortices with separation from the tower was observed.
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Foundation item: Supported by the National Natural Science Foundation of China under Grant Nos.50739004 and 11072154.
Qiang Wang has recently obtained the Bachelor’s Degree of Science in Engineering (Naval Architecture and Ocean Engineering) from Shanghai Jiao Tong University. He has extensive research interest on marine renewable energy and hydrodynamics.
Hu Zhou is a graduate student in School of Naval Architecture and Ocean Engineering in Shanghai Jiao Tong University. The field of research is offshore wind turbine and CFD.
Decheng Wan is a professor of School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, and a distinguished professor of Shanghai Eastern Scholar. His research interests include marine hydrodynamics and computational fluid dynamics, marine numerical wave tank, nonlinear wave theory, fluid-structure interaction, and high performance computation on complex flows, etc.
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Wang, Q., Zhou, H. & Wan, D. Numerical simulation of wind turbine blade-tower interaction. J. Marine. Sci. Appl. 11, 321–327 (2012). https://doi.org/10.1007/s11804-012-1139-9
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DOI: https://doi.org/10.1007/s11804-012-1139-9