The test section is the “heart” of the wind tunnel where the model to be tested is located.
For these test section dimensions, a typical full-span aircraft model would have a wingspan of about 1.6 m, while half models, which are attached with their half fuselage at the top wall of the test section, can have a semi-span of about 1.3 m.
Optical access to the test section for various cameras and light sources is provided through 90 special windows in all walls.
designed to minimize flow disturbances propagating upstream and to provide highly accurate Mach number control during tunnel operation at Mach numbers between 0.7 and 1.0.
*) Copyright by Thomas Ernsting & Ferchau.