Design and Development of a Facility for Compressible Dynamic Stall Studies of a Rapidly Pitching Airfoil
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A facility for the study of dynamic stall of an airfoil undergoing a transient ramp type pitching motion is described. The facility can produce pitch rates of 3600 degrees/sec, to an angle of attack of 60 degrees by using a specially designed hydraulic drive with feedback control. A unique airfoil support system allows unobstructed flow visualization including the complete airfoil contour, thus permitting the use of non-intrusive optical diagnostic methods for flow measurement close to the surface as well as simultaneous far field measurements. Schlieren results obtained with this facility are presented.
ICIASF '89 RECORD, IEEE Publication 89CH2762-3, pp. 29-37.
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