AN EXTENSION OF THE INVESTIGATION OF THEnEFFECTS OF HEAT TRANSFER ON BOUNDARY-LAYER TRANSITIONnON A PARABOLIC BODY OF REVOLUTION (NACA RM-10)

摘要

The investigation (NACA RM L52E29a) of the effects of heat transfer on boundary-layer transition on a parabolic body of revolution (NACA RM-10 without fins) has been extended to higher Reynolds numbers, to greater amounts of heating, and to a more extensive study of the effects of surface irregularities and disturbances generated in the air stream. The tests were made at a Mach number of 1.6l and over a Reynolds number range from 2.5 X 106 to 35 x 106. The maximum cooling of the model used in these tests corresponded to a wall-to-free-stream temperature ratio of 1.12, a value somewhat higher than the theoretical value required for infinite boundary-layer stability at this Mach number.