Results show a useful method that enables to create new airfoils, geometrically, and it also enables to control the aerodynamic characteristics of the aircraft, so that it can provide a large number of options among the reference airfoils. The angle of attack as a variable varied from-14o to +14o. ![]() The results obtained from this study will be tabulated and graph of the relationship between the Lift to the Angles of Attack will be plotted. ![]() A comparison of the obtained characteristic of new airfoils also be done with the available data for the reference airfoils. The simulation will be done at the same conditions corresponding to angle of attack, velocity and Reynolds numbers. CFD simulations were applied to new and reference airfoils using fluent to verify aerodynamic characteristic. In total, four new airfoils configurations were generated, by drawing the required coordinates of the new possible models between the coordinates of the two mentioned airfoils. ![]() For this purpose, a geometric design philosophy has been applied as a first step and here it's described Using CAD software (CATIA) reference airfoils (NACA 652-415 and NLF (1)-0215.) are drawn geometrically at the same coordinates, from the same starting point and at the same scale. The aim of this research was to find out whether it is possible to obtain a new airfoil design for an ultra-light aircraft, geometrically in which the aerodynamic characteristics are intermediate between two known airfoils (NACA 652-415 and NLF (1)-0215).
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