9 supp sheets. Velocity potential, lift force, moment, and propulsive force on two-dimensional airfoil in stream of periodically varying angle of attack are derived on basis of non-stationery incompressible potential flow theory which includes effect of continuous sheet of vortices shed from trailing edge; application of results.
Some considerations on airfoil in oscillating stream
Nat Advisory Committee Aeronautics -- Tech Note
1947
38 pages
Report
English
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