Naval Postgraduate School
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.
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ICIASF '89 RECORD, IEEE Publication 89CH2762-3, pp. 29-37.
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