![]() Furthermore, it provides the means to assess the proper spacing and distance between turbine blades to generate the desired thrust. Using models such as these for system-level analysis provides the means to assess the feasibility of different VAWT configurations. The model shows that two angles of attack regions between 0 and 30° and then again those between 180° and 300° provide the highest thrust contributions of the airfoil. These comparisons show that this model is superior to previous models when applied to the s1210. The model is presented and compared with other post-stall models within the literature. Models such as this provide the means to predict airfoil lift and drag characteristics and use those results to predict the thrust capabilities of the airfoil as the turbine blades rotate. This model is based upon results from wind-tunnel experimentation and achieves a close approximation of the measured performance of the airfoil. This paper presents a model for predicting 360° of aerodynamic forces acting on the s1210 airfoil at two low Reynolds-number conditions. In designing new VAWT configurations or improving existing configurations, some knowledge of the aerodynamic forces at these angles must be known. The 15 indicates that the airfoil has a 15% thickness to chord length ratio: it is 15% as thick as it is long.Vertical-axis wind turbine (VAWT) configurations expose the airfoil sections of turbine blades to angles of attack between 0° and 360°. The NACA 0015 airfoil is symmetrical, the 00 indicating that it has no camber. įor example, the NACA 2412 airfoil has a maximum camber of 2% located 40% (0.4 chords) from the leading edge with a maximum thickness of 12% of the chord.
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