CFD analysis of rotating two-bladed flatback wind turbine rotor.

van Dam, C.P. (University of California, David, CA) ; Chao, David D. ; Berg, Dale E. (University of California, David, CA)

Sandia National Laboratories

关键词: Wind Turbines Aerodynamics.;    Aerodynamics;    Wind Tunnels;    Aerodynamics.;    Turbine Blades.;   

DOI  :  10.2172/932883
RP-ID  :  SAND2008-1688
RP-ID  :  AC04-94AL85000
RP-ID  :  932883

美国|英语

来源: UNT Digital Library

【 摘 要 】

The effects of modifying the inboard portion of the NREL Phase VI rotor using a thickened, flatback version of the S809 design airfoil are studied using a three-dimensional Reynolds-averaged Navier-Stokes method. A motivation for using such a thicker airfoil design coupled with a blunt trailing edge is to alleviate structural constraints while reducing blade weight and maintaining the power performance of the rotor. The calculated results for the baseline Phase VI rotor are benchmarked against wind tunnel results obtained at 10, 7, and 5 meters per second. The calculated results for the modified rotor are compared against those of the baseline rotor. The results of this study demonstrate that a thick, flatback blade profile is viable as a bridge to connect structural requirements with aerodynamic performance in designing future wind turbine rotors.