Airfoil testing as a major activity of many wind tunnels is considered, and emphasis is placed on airfoil testing with sidewall boundary-layer removal, oscillating airfoil testing, and three-dimensional wake topology. Buffeting as the structural response of an aircraft or test model to the aerodynamic excitation produced by separated flows is analyzed, as well as flutter problems and testing techniques. Strain-gage balance studies, optical methods and visualization techniques, and fluid mechanics are examined. Focus is placed on a two-spot laser as a boundary-layer probe, hot-film gages, fluctuating-pressure measurements, skin-friction balance, and nonadiabatic airfoil testing. Boattail afterbody pressure tests are covered, and Space Shuttle Orbiter base drag and launch configuration are discussed.
Typical testing experience in cryogenic wind tunnels
1987-10-01
Conference paper
No indication
English
NTIS | 1980
NTRS | 1989
|Tema Archive | 1980
Cryogenic wind tunnels for high Reynolds number testing
NTRS | 1986
|Cryogenic Wind Tunnels for High Reynolds Number Testing
NTIS | 1986
|