LIFT AND DRAG CHARACTERISTICS AT SUBSONIC SPEEDS AND AT A MACH NUMBER OF 1.9 OF A LIFTING CIRCULAR CYLINDER WITH A FINENESS RATIO OF 10

摘要

An exploratory wind-tunnel" investigation has been made on a circular cylinder at subsonic speeds and at a Mach number M of 1.9 to determine the feasibility of using small flaps to develop lift for possible reentry application. Several full-span flaps attached normal to the lower surface of the cylinder and varying in chord from 0.004 to 0.300 diameters were U6ed as lift-generating devices. Most of the test6 were made with flaps located at the 50-percent-chord station although a few tests were made with the chordwise location as one of the parameters. The investigation was made on a cylinder with a fineness ratio of 10 over a Mach number range from 0.07 to 0.80 and at M = 1.9. The investigation covered a range of Reynolds number from 355,000 to 1,600,000.