Aerodynamic design and performance analysis of multi-MW class wind turbine blade

• Published in: Journal of mechanical science and technology Vol. 25; no. 8; pp. 1995 - 2002
• Main Authors: Kim, Bumsuk, Kim, Woojune, Bae, Sungyoul, Park, Jaehyung, Kim, Manneung
• Format: Journal Article
• Language: English
• Published: Heidelberg Korean Society of Mechanical Engineers 01.08.2011; Springer Nature B.V; 대한기계학회
• Subjects: Aerodynamics; Applied fluid mechanics; Applied sciences; Blades; Boundary element method; Computational methods in fluid dynamics; Control; Design engineering; Direct power generation; Dynamical Systems; Energy; Engineering; Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Industrial and Production Engineering; Mathematical analysis; Mathematical models; Mechanical Engineering; Natural energy; Physics; Thrust force; Vibration; Wind energy; Wind power generation; 기계공학; Blade element momentum theory; Blade design; Performance analysis; Computational fluid dynamics; Wind turbine; Wind; Turbine blades; Aerodynamics; Radial flow; Momentum; Dynamic loads; Energy conversion; Electric generators; Dynamic stability; EFD wind generators; Modelling; Kinetic energy; Boundary element method
• ISSN: 1738-494X; 1976-3824
• DOI: 10.1007/s12206-011-0521-x

The rotor blade is an important device that converts kinetic energy of wind into mechanical energy. It affects power performance, efficiency of energy conversion, load and dynamic stability of a wind power generation system. This paper presents an aerodynamic design of 3 MW class blade using BEM and confirms that the design satisfies the initial design target by BEM and CFD analysis. To investigate the effects of radial flow at the inboard region, the result of static BEM analysis was compared with the result of CFD analysis. The result of quantitative comparison among thrust force, power coefficient and mechanical power depending on wind speed change is presented. Furthermore, design reference data such as pressure, streamline, torque and thrust force distribution on the blade surface is presented as well.