Theoretical Considerations
The flow over the airfoil is assumed to be steady incompressible and irrotational.
The governing flow equation is ?2?=0, Laplace’s equation of the velocity potential.
The boundary condition is
The solution of the flow is obtained by steady first order panel method. The FORTRAN code, AIGE is written.
The effect of the ground is obtained by mirror image method such that v=0 on the ground surface.
The midpoints of the panels are chosen as the control points.