Experimental verification of the theory of oscillating airfoils

Silverstein, Abe Joyner, Upshur T
naca-report-673
1939


Measurements have been made of the lift on an airfoil in pitching oscillation with a continuous-recording, instantaneous-force balance. The experimental values for the phase difference between the angle of attack and the lift are shown to be in close agreement with theory.

An Adobe Acrobat (PDF) file of the entire report:
http://naca.central.cranfield.ac.uk/reports/1939/naca-report-673.pdf