35th Congress of the International Council of the Aeronautical Sciences

03.2 - Experimental Aerodynamics

METROLOGY METHODS FOR ISOLATING PROFILE FORM, WAVINESS, STEPS, AND TWIST FROM SCANS OF SMALL-SCALE LAMINAR FLOW WIND TUNNEL MODELS

C. Hiemcke¹, R. Buth¹, C. Schneider¹, C.J. Jones¹; ¹General Atomics Aeronautical Systems, Inc., United States

This paper presents a methodology for scanning and then evaluating the point cloud for a small-scale wind tunnel model, specifically to avoid unintended transition. The tolerances are based on the Carmichel criterion and stability theory. The method is applied to a 2-ft model of the PRANDTL-D flying wing.


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