# Aerodynamics Lab

Three experiments have been performed within the CLASD laboratory of Politecnico di Milano.
The first experience was the calibration of the open loop wind tunnel. Measurement of airspeed is obtained by Pitot tube. However such instrument together with the airfoil can disturb the airflow around. To avoid this issue is possible to take the pressure measurement at the wall with a probe. But this measures a different value with respect to the one measured by Pitot. So a relation Pitot Pressure- Wall pressure is needed. The following relationship holds:

$Latex formula$