Comparison of a two-dimensional adaptive-wall technique with analytical wall interference correction techniques

摘要

A two-dimensional airfoil model has been tested in the adaptive-wall test section of the Langley 0.3-Meter Transonic Cryogenic Tunnel (0.3-m TCT) and in the ventilated test section of the Two-Dimensional High Reynolds Number Facility (HRNF) at the National Aeronautical Establishment (NAE) in Canada. The primary goal of the tests was to compare two different techniques to account for wall interference: adaptive test section walls and classical analytical corrections. Tests were conducted over a Mach number range from 0.3 to 0.8 at chord Reynolds number of 10 x 10(exp 6), 15 x 10(exp 6), and 20 x 10(exp 6). The angle of attack was varied from about -2 degree up to stall. This supplement presents comparisons of the published or baseline chordwise pressure distributions from the 0.3-m TCT and the HRNF.