Airfoil Parameters Design And Experimental Study Of H Type Vertical Axis Wind Tuebine

Actively developing low carbon clean energy is very important to solve the serious environmental pollution and resource depletion problem in today’s world. As a kind of clean and renewable energy, wind energy has been pai d much attention by many research institutions. Along with the research of wind power generation device, the H-type vertical axis wind turbine enters the research personnel’s field of view depend of its advantages of simple structure, without the need for wind and maintenance. The blade is the power plant of the wind turbine. Its aerodynamic performance directly affects the wind energy utilization ratio of the wind turbine. The research and optimization of the blade airfoil is of great significance to the improvement of the wind energy utilization ratio of the H-type vertical axis wind turbine.In this thesis, the H type vertical axis wind turbine is studied as the research object. The change law of its working mechanism and lift and drag coefficient in the blade rotation is revealed by using the multiple stream-tube theory. The simulation model of the H type vertical axis wind wing type and the whole machine is established. By solving the Navier-Stokes equation, the lift and drag coefficient of the airfoil at the same Reynolds number is obtained. The tangential force coefficient curve is obtained by calculating. The optimal airfoil is selected by comparing the curve of tangential force coefficient. To obtain the relationship between wind energy utilization rate and the number of blades, the blade chord length and installation angle, CFD method has been used. Design experiment plan, build the experimental platform, and experiment. Research on the working conditions of the H-type wind turbine installed with the optimal airfoil and NACA0015 under different loads, wind speed and installation angle.In this thesis, the influence of the shape of the airfoil, the real degree of the impeller and the installation angle on the performance of the wind turbine is studied by using the method of numerical simulation and experiment of the H-type vertical axis wind turbine. The results provide important reference for the design of the blades and the structure of the H type vertical axis wind turbine, which has a certain theoretical significance and engineering application value.