Investigation of an airfoil

For the investigation of an airfoil a measuring setup was realized, which allows the simultaneous measurement of the suction as well as the pressure side of the airfoil. For this purpose, it is necessary to illuminate both sides of the profile with a light sheet. By using a suitable beam splitter it is possible to split the laser beam into two partial beams with the same energy. These are then guided via mirrors to two light sheet optics. This makes it possible to expose the velocity field on the suction and pressure side of the profile simultaneously without having to modify the beam path.