The first phase of the research includes the
testing without active airflow generally to verify
the simulation calculations. The second phase
of the wind tunnel testing assumed to take full
advantage of the bench testing of active airflow
at different values of overpressure and vacuum.
The number and arrangement of the holes on the
airfoil upper surface were adopted on the basis
of previous simulation studies. The impact of
the inlet located on the leading edge of the profile
was disregarded in the examination. Such a
solution turned out to be pointless and affects
the aerodynamics of the airfoils. The study was
conducted for all of the previously mentioned
airfoils. Boundary conditions for each of the airfoils
were as follows: different values of angles
of attack, wind velocity, and overpressure and
vacuum