O. J. Abdalgbar, I. K. S. F. G. B. “Models NASA Blades to Measure the Maximum Power Generator for (VAWT) by Lift and Drag Coefficient”. Design Engineering, Vol. 2021, no. 3, Apr. 2021, pp. 79 -83, http://thedesignengineering.com/index.php/DE/article/view/1208.