Design of the LRP airfoil series using 2D CFD

The Science of Making Torque from Wind 2014

Zahle, Frederik^1 ; Bak, Christian^1 ; Sørensen, Niels N.^1 ; Vronsky, Tomas^2 ; Gaudern, Nicholas^2

Technical University of Denmark, Department of Wind Energy, Risø Campus, Frederiksborgvej 399, 4000 Roskilde, Denmark^1

Vestas Wind Systems A/S, Central Denmark Region, Aarhus, Denmark^2

关键词: Gradient based;    High Reynolds number;    High-lift airfoils;    Lift coefficient;    Lift to drag ratio;    Multi-points;    Navier-Stokes flow solver;    Wind-tunnel testing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/524/1/012020/pdf
DOI  :  10.1088/1742-6596/524/1/012020

来源: IOP

【 摘 要 】

This paper describes the design and wind tunnel testing of a high-Reynolds number, high lift airfoil series designed for wind turbines. The airfoils were designed using direct gradient- based numerical multi-point optimization based on a Bezier parameterization of the shape, coupled to the 2D Navier-Stokes flow solver EllipSys2D. The resulting airfoils, the LRP2-30 and LRP2-36, achieve both higher operational lift coefficients and higher lift to drag ratios compared to the equivalent FFA-W3 airfoils.