Analysis on the Aerodynamic Characteristics of a Continuous Whole Variable Camber Airfoil

In this paper, based on the genetic algorithm, a 4-section optimization airfoil structure is designed, which can change entire camber of the airfoil. For this new type of integral changeable camber airfoil, its first structure cam be deflected downward by 30 degrees, the second section is fixed, the third stage be capable of deflect downward by 30 degrees, and the fourth section be able to bend up and down by 30 degrees. In addition, the computational fluid dynamics method is adopted to numerically simulate the aerodynamic performance of variable camber airfoils. The numerical results observe that the used of varying camber airfoil has better been stalling characteristics and larger lift coefficient comparison with the Clark Y airfoil and NACA114 airfoil.