Initial unsteady aerodynamic measurements of a circulation controlled airfoil and an oscillating flow wind tunnel.
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Author
Lancaster, Emmet John
Date
1977-06Advisor
Schmidt, Louis V.
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Show full item recordAbstract
Steady state results of lift developed by varying the
momentum blowing coefficient (C(ϻ)) upon a refurbished
Circulation Control Rotor (CCR) airfoil section were favorable.
This thesis was an experimental investigation to
quantitatively evaluate whether the steady state results
could be applied by a quasi-steady assumption when a harmonic
perturbation of C(ϻ) was superimposed upon the steady
value. Results suggested an attenuation in the dynamic
transfer function of dC(p)/dC(ϻ) as the oscillating blowing frequency was increased.
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