Numerical Study on Aerodynamic Performance of Different Forms of Adaptive Blades for Vertical Axis Wind Turbines

The wind energy exploitation technique has been developed very quickly in recent years. vertical axis turbine is a hot research domain due to several advantages: low noise, flexible for installation, ease of maintenance, great safety and credibility, etc. aerodynamic performances different forms airfoils including an active deformation airfoil fluid-solid coupling passive with two-dimensional (2D) three-dimensional (3D) cases have investigated numerically this paper. Firstly, the maximum amplitudes their cambers which are 3%, 5% 7% chord length discussed, respectively, angles attack range 0° 20°. Secondly, angle set at 18°, two-way simulations Young’s Modulus 1 Mpa 2 also investigated. Results show that: (1) pseudo 3D real single cases, lift coefficients increase as augment from 3% same attack. With amplitude, when 20°, firstly then decrease bigger than that original NACA0012 airfoil. When amplitude reaches length, relatively good performance better inhibition effect vortex generation can be obtained. distribution demonstrates deformable controlling middle cross-section along spanwise direction non-deformable (2) From aspect coupling, increases drag decreases so ratio big improvement equal Mpa. inhibit shedding surface considered.