In aerodynamics or hydrodynamic, the angle of incidence or the angle of attack is the angle that forms the chord of the profile with a fluid stream..

the angle of incidence or attack is an important parameter in the calculation of the drag and lift..

with Mecaflux standard

The mecaflux software offers 11 different profiles at various angles of incidence or attack

hydrodynamic aerodynamic incidence attack angle software mecaflux